J. Watson

Barbara Zielinska, Darko Koracin, Judith C Chow, 2006, Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering.

Environmental issues and management strategies for waste electronic and electrical equipment.

John Watson, George M Hidy, Judith C Chow, 2011, Journal of the Air & Waste Management Association.

On-road measurement of automotive particle emissions by ultraviolet Lidar and transmissometer: theory

Claudio Mazzoleni, John G. Watson, Hampden D. Kuhns, 2004 .

In-Plume Emission Test Stand 2: Emission Factors for 10- to 100-kW U.S. Military Generators

Judith C. Chow, John G. Watson, Hampden D. Kuhns, 2009, Journal of the Air & Waste Management Association.

Spatial and temporal variations in ambient PM2.5 and PM10 in Mexico City

J. Chow, J. Watson, E. Ortiz, 2000 .

Cytotoxicity of PM2.5 vehicular emissions in the Shing Mun Tunnel, Hong Kong.

J. Chow, J. Watson, Junji Cao, 2020, Environmental pollution.

Supplementary material to "Distribution and stable carbon isotopic composition of dicarboxylic acids, ketocarboxylic acids and α-dicarbonyls in fresh and aged biomass burning aerosols"

J. Chow, J. Watson, Junji Cao, 2022, Atmospheric Chemistry and Physics.

Hong Kong vehicle emission changes from 2003 to 2015 in the Shing Mun Tunnel

J. Chow, J. Watson, K. Ho, 2018 .

Introduction to the 2013 Critical Review

J. Chow, J. Watson, G. Hidy, 2013, Journal of the Air & Waste Management Association.

Quantification of oxygenated polycyclic aromatic hydrocarbons in ambient aerosol samples using in-injection port thermal desorption-gas chromatography/mass spectrometry: Method exploration and validation

J. Chow, J. Watson, Junji Cao, 2018, International Journal of Mass Spectrometry.

Critical Review Program – 25th Anniversary Introduction

J. Watson, 1995 .

Brownness of Organic Aerosol over the United States: Evidence for Seasonal Biomass Burning and Photobleaching Effects.

J. Chow, J. Watson, Junji Cao, 2021, Environmental science & technology.

Application of Thermal Desorption–Mass Spectrometry for the Analysis of Environmental Pollutants

J. Chow, J. Watson, J. Yu, 2017 .

Public Health and Components of Particulate Matter: The Changing Assessment of Black Carbon

J. Chow, J. Watson, R. Wyzga, 2014, Journal of the Air & Waste Management Association.

Multidisciplinary study of ozone, acidic deposition and climate effects on a mixed conifer forest in California, USA

J. Chow, M. Fenn, J. Watson, 1998 .

Dilution-Based Emissions Sampling from Stationary Sources: Part 2—Gas-Fired Combustors Compared with Other Fuel-Fired Systems

J. Chow, J. Watson, G. Hidy, 2007, Journal of the Air & Waste Management Association.

Atmospheric deterioration of Qin brick in an environmental chamber at Emperor Qin's Terracotta Museum, China

Judith C. Chow, John G. Watson, K. F. Ho, 2009 .

Changes in PM2.5 peat combustion source profiles with atmospheric aging in an oxidation flow reactor

J. Chow, J. Watson, A. Watts, 2019, Atmospheric Measurement Techniques.

Evaluation of 1047-nm photoacoustic instruments and photoelectric aerosol sensors in source-sampling of black carbon aerosol and particle-bound PAHs from gasoline and diesel powered vehicles.

C. F. Rogers, J. Lighty, J. Chow, 2005, Environmental science & technology.

Overview Of Ultrafine Particles AndHuman Health

J. Chow, J. Watson, 2006 .

A Biomass Combustion Chamber: Design, Evaluation, and a Case Study of Wheat Straw Combustion Emission Tests

Jie Tian, L. Chen, J. Watson, 2015 .

A neighborhood-scale study of PM10 source contributions in Rubidoux, California

J. Chow, J. Watson, L. C. Pritchett, 1992 .

The effects of collinearity on the ability to determine aerosol contributions from diesel- and gasoline-powered vehicles using the Chemical Mass Balance model

Judith C. Chow, John G. Watson, Richard J. Countess, 1992 .

Chapter three: methodology of exposure modeling.

Tan Zhu, John Watson, Werner Klein, 2002, Chemosphere.

Considerations for design of source apportionment studies

J. Cooper, G. Gordon, J. Watson, 1984 .

The application of thermal methods for determining chemical composition of carbonaceous aerosols: A review

J. Chow, J. Watson, J. Yu, 2007, Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering.

Chemical Analyses of Particle Filter Deposits

J. Chow, J. Watson, 2012 .

Optical Calibration and Equivalence of a Multiwavelength Thermal/Optical Carbon Analyzer

Dana L. Trimble, L. Chen, J. Chow, 2015 .

Methods to Assess Carbonaceous Aerosol Sampling Artifacts for IMPROVE and Other Long-Term Networks

L. Chen, J. Chow, J. Watson, 2009, Journal of the Air & Waste Management Association.

Northern Front Range Air Quality Study Final Report Volume B: Source Measurements

J. Chow, J. Watson, J. McDonald, 1998 .

Moisture effects on carbon and nitrogen emission from burning of wildland biomass

J. Chow, J. Watson, P. Verburg, 2010 .

Estimating Middle-, Neighborhood-, and Urban-Scale Contributions to Elemental Carbon in Mexico City with a Rapid Response Aethalometer

J. Chow, J. Watson, 2001, Journal of the Air & Waste Management Association.

Winter and Summer PM2.5 Chemical Compositions in Fourteen Chinese Cities

Judith C. Chow, John G. Watson, Kin-Fai Ho, 2012, Journal of the Air & Waste Management Association.

Comparison and evaluation of in situ and filter carbon measurements at the Fresno Supersite

Judith C. Chow, John G. Watson, J. Chow, 2002 .

Emissions from Charbroiling and Grilling of Chicken and Beef

J. Chow, J. Watson, J. McDonald, 2003, Journal of the Air & Waste Management Association.

Field study plan for the Central California Ozone Study

J. Watson, E. Fujita, R. Keislar, 1999 .

Particle Size Relationships at the Fresno Supersite

J. Chow, J. Watson, N. Kreisberg, 2002, Journal of the Air & Waste Management Association.

The IMPROVE_A Temperature Protocol for Thermal/Optical Carbon Analysis: Maintaining Consistency with a Long-Term Database

Judith C. Chow, John G. Watson, Norman F. Robinson, 2007, Journal of the Air & Waste Management Association.

Characterization of Roadside Fine Particulate Carbon and its Eight Fractions in Hong Kong

J. Chow, J. Watson, Junji Cao, 2003 .

Effects of Snow Cover and Atmospheric Stability on Winter PM2.5Concentrations in Western U.S. Valleys

J. Chow, J. Watson, Mark C. Green, 2015 .

Wintertime particulate pollution episodes in an urban valley of the Western US: a case study

J. Chow, J. Watson, Mark C. Green, 2012 .

Evaluation of organic markers for chemical mass balance source apportionment at the Fresno Supersite

Judith C. Chow, Barbara Zielinska, John G. Watson, 2006 .

Modeling reflectance and transmittance of quartz-fiber filter samples containing elemental carbon particles: Implications for thermal/optical analysis

L. Chen, J. Chow, J. Watson, 2004 .

Evaluation of the thermal/optical reflectance method for discrimination between char- and soot-EC.

J. Chow, J. Watson, Junji Cao, 2007, Chemosphere.

Characterization of airborne carbonate over a site near Asian dust source regions during spring 2002 and its climatic and environmental significance

Judith C. Chow, John G. Watson, K. F. Ho, 2005 .

Overview of Real-World Emission Characterization Methods

Steven D. Kohl, Judith C. Chow, Xiaoliang Wang, 2012 .

Integrated Monitoring Plan for the Oil Sands - Air Quality Component

R. Martin, C. McLinden, J. Watson, 2011 .

The IMADA-AVER Boundary Layer Experiment in the Mexico City Area

J. L. Martinez, J. T. Lee, J. Chow, 1998 .

Particulate carbon measurements in California's San Joaquin Valley.

L. Chen, J. Chow, J. Watson, 2006, Chemosphere.

Quantification of nitrated-polycyclic aromatic hydrocarbons in atmospheric aerosol samples with in-injection port thermal desorption-gas chromatography/ negative chemical ionization mass spectrometry method

J. Chow, J. Watson, Junji Cao, 2018, Atmospheric Environment.

Enhanced Ion Chromatographic Speciation of Water-Soluble PM$$_{2.5}$$2.5 to Improve Aerosol Source Apportionment

J. Chow, J. Watson, 2017 .

Separation of brown carbon from black carbon for IMPROVE and Chemical Speciation Network PM2.5 samples

Dana L. Trimble, L. Chen, J. Chow, 2018, Journal of the Air & Waste Management Association.

Guideline on Speciated Particulate Monitoring

Judith C. Chow, John G. Watson, J. Chow, 1998 .

PM-10: implementation of standards. A summary of the APCA-EPA international speciality conference

C. V. Mathai, J. Watson, D. Stonefield, 1988 .

A Summary of the APCA/EPA International Specialty Conference

C. V. Mathai, J. Watson, D. Stonefield, 1988 .

Emissions of gas- and particle-phase polycyclic aromatic hydrocarbons (PAHs) in the Shing Mun Tunnel, Hong Kong

Judith C. Chow, John G. Watson, Peter K.K. Louie, 2009 .

Review of volatile organic compound source apportionment by chemical mass balance

Judith C. Chow, John G. Watson, Eric M. Fujita, 2001 .

Light absorption by black sand dust.

J. Chow, J. McCormack, J. Watson, 2000, Applied optics.

A wintertime PM2.5 episode at the Fresno, CA, supersite

J. Chow, J. Watson, 2002 .

Toward Effective Source Apportionment Using Positive Matrix Factorization: Experiments with Simulated PM2.5 Data

Stephen B. Reid, Naresh Kumar, L. Chen, 2010, Journal of the Air & Waste Management Association.

Nanoparticle and Ultrafine Particle Events at the Fresno Supersite

J. Chow, J. Watson, Kihong Park, 2006, Journal of the Air & Waste Management Association.

Chemical source profiles for particulate motor vehicle exhaust under cold and high altitude operating conditions

J. Chow, J. Watson, R. Ragazzi, 1990 .

Winter Urban Chemistry and Denver’s Brown Cloud: Part 1—Light Extinction and Visibility

S. Heisler, J. Watson, G. Hidy, 2020, Aerosol Science and Engineering.

Spatial and seasonal variations of atmospheric organic carbon and elemental carbon in Pearl River Delta Region, China

J. Chow, J. Watson, Junji Cao, 2004 .

Gaseous, PM2.5 mass, and speciated emission factors from laboratory chamber peat combustion

L. Chen, J. Chow, J. Watson, 2019, Atmospheric Chemistry and Physics.

Characterization of smoke for spacecraft fire safety

J. Chow, J. Watson, Xiaoliang Wang, 2019, Journal of Aerosol Science.

Winter and Summer PM 2.5 Chemical Compositions in

Judith C. Chow, John G. Watson, Yongming Han, 2012 .

Continuous and filter-based measurements of PM2.5 nitrate and sulfate at the Fresno Supersite

J. Chow, J. Watson, Kihong Park, 2008, Environmental monitoring and assessment.

Decreases in elemental carbon and fine particle mass in the United States

W. Malm, J. Chow, J. Watson, 2011 .

Atmospheric Abundance of PM2.5 Carbonaceous Matter and Their Potential Sources at Three High-Altitude Glacier Sites over the Indian Himalayan Range

J. Chow, J. Watson, S. Tiwari, 2022, ACS Earth and Space Chemistry.

Characterization of Ambient PM10 Bioaerosols in a California Agricultural Town

L. Chen, J. Chow, J. Watson, 2015 .

Review of Respirable Coal Mine Dust Characterization for Mass Concentration, Size Distribution and Chemical Composition

J. Chow, J. Watson, Xiaoliang Wang, 2021, Minerals.

Ambient Aerosol Sampling

J. Chow, J. Watson, 2011 .

Evaluation of an in-injection port thermal desorption-gas chromatography/mass spectrometry method for analysis of non-polar organic compounds in ambient aerosol samples.

J. Chow, J. Watson, J. Schauer, 2008, Journal of chromatography. A.

Characterization and health risk assessment of PM2.5-bound organics inside and outside of Chinese smoking lounges.

J. Chow, J. Watson, Junji Cao, 2017, Chemosphere.

Morphological and Elemental Classification of Freshly Emitted Soot Particles and Atmospheric Ultrafine Particles using the TEM/EDS

Judith C. Chow, John G. Watson, Arthur L. Miller, 2010 .

Hyphenation of a carbon analyzer to photo-ionization mass spectrometry to unravel the organic composition of particulate matter on a molecular level

J. Chow, J. Watson, A. Mamakos, 2011, Analytical and bioanalytical chemistry.

PM1.0 and PM2.5 Characteristics in the Roadside Environment of Hong Kong

Judith C. Chow, John G. Watson, K. F. Ho, 2006 .

Results from a pilot-scale air quality study in Addis Ababa, Ethiopia

J. Chow, J. Watson, V. Etyemezian, 2005 .

Chemical Mass Balance Source Apportionment of Lead in House Dust

Judith C. Chow, John G. Watson, R. D. Willis, 1998 .

Size-Differentiated Chemical Characteristics of Asian Paleo Dust: Records from Aeolian Deposition on Chinese Loess Plateau

J. Chow, J. Watson, Junji Cao, 2011, Journal of the Air & Waste Management Association.

Emission characteristics of carbonaceous particles and trace gases from open burning of crop residues in China

Jie Tian, Judith C. Chow, John G. Watson, 2015 .

Emissions from laboratory combustion of wildland fuels: emission factors and source profiles.

Hans Moosmüller, Judith C Chow, John G Watson, 2007, Environmental science & technology.

Mexico City and the biogeochemistry of global urbanization

F. Smith, M. Dubey, D. Blake, 2000 .

Air Pollution and Heart Rate Variability Among the Elderly in Mexico City

D. Mannino, J. Chow, J. Watson, 2003, Epidemiology.

Characteristics of carbonaceous particles from residential coal combustion and agricultural biomass burning in China

Jian Sun, Jie Tian, L. Chen, 2017 .

Mass reconstruction methods for PM2.5: a review

Judith C. Chow, John G. Watson, Douglas H. Lowenthal, 2015, Air Quality, Atmosphere & Health.

Physical/Chemical Treatment of Organically Contaminated Soils and Sediments.

J. Watson, 1996, Journal of the Air & Waste Management Association.

Differences in the carbon composition of source profiles for diesel- and gasoline-powered vehicles

Judith C. Chow, John G. Watson, Clifton A. Frazier, 1994 .

Spatial and seasonal distributions of carbonaceous aerosols over China

Judith C. Chow, John G. Watson, K. F. Ho, 2007 .

Characterization and source apportionment of atmospheric organic and elemental carbon during fall and winter of 2003 in Xi'an, China

Judith C. Chow, S. W. Chen, John G. Watson, 2005 .

The Treasure Valley secondary aerosol study II: modeling of the formation of inorganic secondary aerosols and precursors for southwestern Idaho

J. Chow, J. Watson, Mark C. Green, 2003 .

Ammonium Nitrate, Nitric Acid, and Ammonia Equilibrium in Wintertime Phoenix, Arizona

Judith C. Chow, John G. Watson, Fred Lurmann, 1994 .

Relationship between indoor, outdoor, and personal fine particle concentrations for individuals with COPD and predictors of indoor-outdoor ratio in Mexico city

J. Chow, J. Watson, I. Romieu, 2008, Journal of Exposure Science and Environmental Epidemiology.

Effects of indoor activities and outdoor penetration on PM2.5 and associated organic/elemental carbon at residential homes in four Chinese cities during winter.

J. Chow, J. Watson, Shun-cheng Lee, 2020, The Science of the total environment.

Optimization and evaluation of multi-bed adsorbent tube method in collection of volatile organic compounds

J. Chow, L. Li, J. Watson, 2018 .

Influences of relative humidities and temperatures on the collection of C 2 -C 5 aliphatic hydrocarbons with multi-bed (Tenax TA, Carbograph 1TD, Carboxen 1003) sorbent tube method

J. Chow, J. Watson, Junji Cao, 2017 .

Correlation of in Vitro Cytokine Responses with the Chemical Composition of Soil-Derived Particulate Matter

J. Chow, J. Watson, J. Veranth, 2005, Environmental health perspectives.

Characteristics of fine particulate non-polar organic compounds in Guangzhou during the 16th Asian Games: Effectiveness of air pollution controls

Jun Tao, Judith C. Chow, John G. Watson, 2013 .

Black carbon relationships with emissions and meteorology in Xi'an, China

J. Chow, J. Watson, Junji Cao, 2009 .

Evolution of PM2.5 Measurements and Standards in the U.S. and Future Perspectives for China

Judith C. Chow, John G. Watson, Junji Cao, 2013 .

PM2.5 source apportionment with organic markers in the Southeastern Aerosol Research and Characterization (SEARCH) study

J. Chow, J. Watson, E. Edgerton, 2015, Journal of the Air & Waste Management Association.

Aerosol chemical composition and light scattering in Portland, Oregon: The role of carbon

John G. Watson, John A. Cooper, Jitendra J. Shah, 1984 .

Characterization of Atmospheric Ammonia over Xi'an, China

J. Chow, J. Watson, Junji Cao, 2009 .

Particulate Air Pollution in Mexico City: A Detailed View

J. Chow, J. Watson, S. Edgerton, 2010 .

Impact of biomass burning on haze pollution in the Yangtze River delta, China: a case study in summer 2011

Judith C. Chow, Zhen Cheng, John G. Watson, 2013 .

Fine Particle and Gaseous Emission Rates from Residential Wood Combustion

Judith C. Chow, Barbara Zielinska, John G. Watson, 2000 .

Source characterization of major emission sources in the imperial and Mexicali Valleys along the US/Mexico border.

J C Chow, J. Chow, J. Watson, 2001, The Science of the total environment.

Chemical mass balance source apportionment for combined PM2.5 measurements from U.S. non-urban and urban long-term networks☆

Judith C. Chow, John G. Watson, L. Chen, 2010 .

A case study of real-world tailpipe emissions for school buses using a 20% biodiesel blend.

Jay Witt, Claudio Mazzoleni, Gayathri Parthasarathy, 2007, The Science of the total environment.

Chemical composition of PM2.5 and PM10 in Mexico City during winter 1997.

Judith C Chow, John G Watson, J. Chow, 2002, The Science of the total environment.

Comparison of vehicle emissions by EMFAC-HK model and tunnel measurement in Hong Kong

J. Chow, J. Watson, K. Ho, 2021, Atmospheric Environment.

Funeral Pyres in South Asia: Brown Carbon Aerosol Emissions and Climate Impacts

J. Chow, J. Watson, S. Pervez, 2014 .

Stable carbon and oxygen isotopic composition of carbonate in fugitive dust in the Chinese Loess Plateau

J. Chow, J. Watson, Junji Cao, 2008 .

Volatile Organic Compounds and Carbonyls Pollution in Mexico City and an Urban Industrialized Area of Central Mexico

J. Chow, J. Watson, E. Vega, 2022, Aerosol and Air Quality Research.

Comparison of Continuous and Filter-Based Carbon Measurements at the Fresno Supersite

J. Chow, J. Watson, A. Petzold, 2006, Journal of the Air & Waste Management Association.

Isotopic characterization of nitrate, ammonium and sulfate in stack PM2.5 emissions in the Athabasca Oil Sands Region, Alberta, Canada

B. Mayer, J. Chow, J. Watson, 2012 .

PM2.5 source profiles for black and organic carbon emission inventories.

L. Chen, J. Chow, J. Watson, 2011 .

Quality assurance and quality control for thermal/optical analysis of aerosol samples for organic and elemental carbon

L. Chen, J. Chow, J. Watson, 2011, Analytical and bioanalytical chemistry.

Black and Organic Carbon Emission Inventories: Review and Application to California

Judith C Chow, John G Watson, Lung-Wen Antony Chen, 2010, Journal of the Air & Waste Management Association.

PM2.5 and PM10 Mass Measurements in California's San Joaquin Valley

Judith C. Chow, John G. Watson, Kihong Park, 2006 .

Particle emissions from laboratory combustion of wildland fuels: In situ optical and mass measurements

L. Chen, J. Chow, J. Watson, 2006 .

Source profiles for industrial, mobile, and area sources in the Big Bend Regional Aerosol Visibility and Observational study.

Hampden Kuhns, Johann P Engelbrecht, Vicken Etyemezian, 2004, Chemosphere.

Judith C. Chow, John G. Watson, Lowell L. Ashbaugh, 2003 .

Sources of PM10 and sulfate aerosol at McMurdo Station, Antarctica.

J. Chow, J. Watson, D. Lowenthal, 2001, Chemosphere.

Chemical element balance receptor model methodology for assessing the sources of fine and total suspended particulate matter in Portland, Oregon

J. Watson, 1979 .

Review of Measurement Methods and Compositions for Ultrafine Particles

Judith C. Chow, John G. Watson, J. Chow, 2007 .

Air quality measurements from the Southern Particulate Matter Supersite in Taiwan

Judith C. Chow, John G. Watson, J. Chow, 2008 .

Analysis of Temporal and Spatial Dichotomous PM Air Samples in the El Paso-Cd. Juarez Air Quality Basin

J. Chow, J. Watson, J. Gardea-Torresdey, 2001, Journal of the Air & Waste Management Association.

Coarse particle (PM10-2.5) source profiles for emissions from domestic cooking and industrial process in Central India.

J. Chow, J. Watson, S. Tiwari, 2018, The Science of the total environment.

Size-resolved aerosol chemical concentrations at rural and urban sites in Central California, USA

J. Chow, J. Watson, D. Lowenthal, 2008 .

Characterization of PM10 and PM2.5 source profiles for fugitive dust in Hong Kong

Judith C. Chow, John G. Watson, K. F. Ho, 2003 .

Hyphenation of a EC / OC thermal–optical carbon analyzer to photo-ionization time-of-flight mass spectrometry: an off-line aerosol mass spectrometric approach for characterization of primary and secondary particulate matter

J. Chow, J. Watson, A. Mamakos, 2015 .

Aerosol properties at a midlatitude Northern Hemisphere continental site

J. Chow, J. Watson, R. Shrestha, 2001 .

Impact of Different Household Fuel Use on Source Apportionment Results of House-Indoor RPM in Central India

Judith C. Chow, John G. Watson, Shamsh Pervez, 2012 .

Speciated non-methane organic compounds emissions from food cooking in Mexico

J. Chow, J. Watson, J. L. Arriaga, 2001 .

Polycyclic aromatic compounds (PAHs, oxygenated PAHs, nitrated PAHs, and azaarenes) in air from four climate zones of China: Occurrence, gas/particle partitioning, and health risks.

J. Chow, J. Watson, Junji Cao, 2021, The Science of the total environment.

Evaluation of filter-based aerosol measurements during the 1987 Southern California Air Quality Study

J. Chow, J. Watson, E. Fujita, 1994, Environmental monitoring and assessment.

Filter Processing and Gravimetric Analysis for Suspended Particulate Matter Samples

J. Chow, J. Watson, Xiaoliang Wang, 2017, Aerosol Science and Engineering.

The Effect of Sampling Inlets on the PM-10 and PM-15 to TSP Concentration Ratios

Judith C. Chow, John G. Watson, Jitendra J. Shah, 1983 .

Consistency of long-term elemental carbon trends from thermal and optical measurements in the IMPROVE network

L. Chen, J. Chow, J. Watson, 2012 .

Review of PM2.5 and PM10 Apportionment for Fossil Fuel Combustion and Other Sources by the Chemical Mass Balance Receptor Model

Judith C. Chow, John G. Watson, J. Chow, 2002 .

The optical properties of urban aerosol in northern China: A case study at Xi'an

L. Chen, J. Chow, J. Watson, 2015 .

Estimation of aerosol mass scattering efficiencies under high mass loading: case study for the megacity of Shanghai, China.

J. Chow, J. Watson, Shuxiao Wang, 2015, Environmental science & technology.

Energy supplies and future engines for land, sea, and air

Alan C. Lloyd, John G. Watson, George M. Hidy, 2012, Journal of the Air & Waste Management Association.

Methodology to Create Reproducible Validation/Reference Materials for Comparison of Filter-Based Measurements of Carbonaceous Aerosols That Measure BC, BrC, EC, OC, and TC

P. Solomon, J. Watson, J. Schauer, 2021, Metrology.

Characterization and seasonal variations of levoglucosan in fine particulate matter in Xi’an, China

J. Chow, J. Watson, K. Ho, 2014, Journal of the Air & Waste Management Association.

Chemical speciation of aerosols and air quality degradation during the festival of lights (Diwali)

J. Chow, J. Watson, S. Pervez, 2016 .

Reference Material 8785: Air Particulate Matter on Filter Media

J. Chow, J. Watson, R. Cary, 2005 .

Photoacoustic optical properties at UV, VIS, and near IR wavelengths for laboratory generated and winter time ambient urban aerosols

M. Mishchenko, L. Chen, J. Chow, 2011 .

Chemical Composition of Aerosols from Kerosene Heaters Burning Jet Fuels

J. Chow, J. Watson, C. Frazier, 2001 .

PM10 measurements at McMurdo Station, Antarctica

J. Chow, J. Watson, D. Lowenthal, 2001 .

Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces

J. Chow, J. Watson, Xiaoliang Wang, 2022, Minerals.

PM2.5 chemical composition in Hong Kong: urban and regional variations.

Judith C Chow, John G Watson, L. Chen, 2005, The Science of the total environment.

PM2.5 and PM10-2.5 chemical composition and source apportionment near a Hong Kong roadway

Zhaolin Gu, Judith C. Chow, John G. Watson, 2015 .

Quantifying PM2.5 source contributions for the San Joaquin Valley with multivariate receptor models.

L. Chen, J. Chow, J. Watson, 2007, Environmental science & technology.

Receptor Model Source Apportionment of Nonmethane Hydrocarbons in Mexico City

J. Chow, J. Watson, V. Mugica, 2002, TheScientificWorldJournal.

Receptor model and emissions inventory source apportionments of nonmethane organic gases in California's San Joaquin valley and San Francisco bay area

Judith C. Chow, John G. Watson, Eric M. Fujita, 1995 .

Characteristics of carbonaceous aerosol in Pearl River Delta Region, China during 2001 winter period

Judith C. Chow, John G. Watson, K. F. Ho, 2003 .

Spatial and Temporal Variability of Brown Carbon in the United States: Implications for Direct Radiative Effects

L. Chen, J. Chow, J. Watson, 2020, Geophysical research letters.

Volatile aromatic compounds in Mexico City atmosphere: levels and source apportionment

J. Chow, J. Watson, V. Mugica, 2003 .

Volatile organic compounds emissions from gasoline and diesel powered vehicle

J. Chow, J. Watson, J. L. Arriaga, 2001 .

Spatial distribution of PM2.5-bound elements in eighteen cities over China: policy implication and health risk assessment

J. Chow, J. Watson, Junji Cao, 2021, Environmental Geochemistry and Health.

Sensitivity of estimated light extinction coefficients to model assumptions and measurement errors

Judith C. Chow, John G. Watson, C. Fred Rogers, 1995 .

Contributions to Light Extinction During Project MOHAVE

J. Watson, P. Saxena, D. Lowenthal, 2000 .

A laboratory resuspension chamber to measure fugitive dust size distributions and chemical compositions

Judith C. Chow, James E. Houck, John G. Watson, 1994 .

Season and size of urban particulate matter differentially affect cytotoxicity and human immune responses to Mycobacterium tuberculosis

J. Chow, J. Watson, Junfeng Zhang, 2019, PloS one.

Air Pollution Particulate Matter Alters Antimycobacterial Respiratory Epithelium Innate Immunity

J. Chow, J. Watson, T. Kirn, 2015, Infection and Immunity.

Improvement of Engine Exhaust Particle Sizer (EEPS) size distribution measurement – I. Algorithm and applications to compact-shape particles

J. Chow, J. Watson, M. Stolzenburg, 2016 .

Aerosol emissions factors from traditional biomass cookstoves in India: insights from field measurements

J. Chow, J. Watson, P. Biswas, 2017 .

Cultural and Ritual Burning Emission Factors and Activity Levels in India

J. Chow, J. Watson, S. Pervez, 2015 .

Temporal and spatial variations of PM2.5 organic and elemental carbon in Central India

J. Chow, J. Watson, S. Tiwari, 2018, Environmental Geochemistry and Health.

Source Profiles for PM10-2.5 Resuspended Dust and Vehicle Exhaust Emissions in Central India

J. Chow, J. Watson, S. Tiwari, 2018 .

Zones of representation for PM10 measurements along the US/Mexico border.

J C Chow, J. Chow, J. Watson, 2001, The Science of the total environment.

The USEPA/DRI chemical mass balance receptor model, CMB 7.0

Judith C. Chow, John G. Watson, Norman F. Robinson, 1990 .

Black carbon measurement in a coastal area of south China

J. Chow, J. Watson, Junji Cao, 2006 .

Size-differentiated source profiles for fugitive dust in the Chinese Loess Plateau

J. Chow, J. Watson, Junji Cao, 2008 .

Real-world PM, NOx, CO, and ultrafine particle emission factors for military non-road heavy duty diesel vehicles

John G. Watson, Hampden D. Kuhns, Nicholas J. Nussbaum, 2011 .

Filter Light Attenuation as a Surrogate for Elemental Carbon

J. Chow, J. Watson, Mark C. Green, 2010, Journal of the Air & Waste Management Association.

Atmosphere Environment Improvement InTokyo By Vehicle Exhaust Purification

J. G. Watson, J. C. Chow, H. Minoura, 2009 .

Multi-year trend in fine and coarse particle mass, carbon, and ions in downtown Tokyo, Japan

J. Chow, J. Watson, Katsuyuki Takahashi, 2006 .

Clear Sky Visibility as a Challenge for Society

J. Chow, J. Watson, 1994 .

Decreasing concentrations of carbonaceous aerosols in China from 2003 to 2013

J. Chow, J. Watson, Junji Cao, 2021, Scientific Reports.

Organic aerosols in the southeastern United States: Speciated particulate carbon measurements from the SEARCH network, 2006–2010

J. Chow, J. Watson, G. Hidy, 2014 .

Visibility: Science and Regulation

C. V. Mathai, W. Malm, Naresh Kumar, 2002, Journal of the Air & Waste Management Association.

Sources and chemistry of PM10 aerosol in Santa Barbara County, CA

J. Chow, J. Watson, R. Countess, 1996 .

PM2.5 carbonate concentrations at regionally representative Interagency Monitoring of Protected Visual Environment sites

Judith C. Chow, John G. Watson, J. Chow, 2002 .

Emissions and Partitioning of Intermediate-Volatility and Semi-Volatile Polar Organic Compounds (I/SV-POCs) During Laboratory Combustion of Boreal and Sub-Tropical Peat

L. Chen, J. Chow, A. Hodzic, 2017, Aerosol Science and Engineering.

Implications of new suspended particle standards for the cement industry

John G. Watson, J. Watson, 1998, 1998 IEEE/PCA Cement Industry Technical Conference. XL Conference Record (98CH36070).

PM2.5 Source Apportionment: Reconciling Receptor Models for U.S. Nonurban and Urban Long-Term Networks

L. Chen, J. Chow, J. Watson, 2011, Journal of the Air & Waste Management Association.

Standards and Traceability for Air Quality Measurements: Flow Rates and Gaseous Pollutants

J. Chow, J. Watson, S. Kohl, 2013, MAPAN.

Evaluation of Regional-Scale Receptor Modeling

Stephen B. Reid, Naresh Kumar, L. Chen, 2010, Journal of the Air & Waste Management Association.

Distribution and origin of carbonaceous aerosol over a rural high-mountain lake area, Northern China and its transport significance

J. Chow, J. Watson, Renjian Zhang, 2008 .

Size and Geographical Variation in PM1, PM2.5 and PM10: Source Profiles from Soils in the Western United States

J. Chow, J. Watson, J. Veranth, 2004 .

Seasonal variations and sources of mass and chemical composition for PM10 aerosol in Hangzhou, China

J. Chow, J. Watson, Junji Cao, 2009 .

The comparison of source contributions from residential coal and low-smoke fuels, using CMB modeling, in South Africa

Judith C. Chow, John G. Watson, Richard T. Egami, 2002 .

Fresno Supersite Final Report

J. Chow, J. Watson, Kihong Park, 2005 .

Receptor Models in Air Resources Management: A Summary of the APCA International Specialty Conference

Judith C. Chow, John G. Watson, C. V. Mathai, 1989 .

PM10 Standards and Nontraditional Particulate Source Controls: A Summary of the A&WMA/EPA International Specialty Conference

Judith C. Chow, John G. Watson, C. V. Mathai, 1993 .

Comparison of PM10 concentrations in high- and medium-volume samplers in a desert environment

John G. Watson, Alan W. Gertler, William G. Coulombe, 1993, Environmental monitoring and assessment.

Air Quality Measurements from the Fresno Supersite

J. Chow, J. Watson, S. Hering, 2000, Journal of the Air & Waste Management Association.

Evidence of non-tailpipe emission contributions to PM2.5 and PM10 near southern California highways.

J. Chow, J. Watson, Seungju Yoon, 2022, Environmental pollution.

Contributions of non-tailpipe emissions to near-road PM2.5 and PM10: A chemical mass balance study.

J. Chow, J. Watson, Seungju Yoon, 2023, Environmental pollution.

Characterization of PM2.5 and PM10 fugitive dust source profiles in the Athabasca Oil Sands Region

J. Chow, A. Legge, J. Watson, 2015, Journal of the Air & Waste Management Association.

University of Birmingham Characterization of ambient PM2.5 at a pollution hotspot in New Delhi, India and inference of sources

R. Harrison, J. Chow, J. Watson, 2015 .

New analytical technique for characterization of aerosol particles

L. Chen, J. Chow, J. Watson, 2015 .

Regional Source Identification Using Lagrangian Stochastic Particle Dispersion and HYSPLIT Backward-Trajectory Models

Naresh Kumar, Darko Koracin, John G. Watson, 2011, Journal of the Air & Waste Management Association.

Chemical characterization and source apportionment of size-resolved particles in Hong Kong sub-urban area

J. Chow, J. Watson, Shun-cheng Lee, 2016 .

Constraining aerosol optical models using ground-based, collocated particle size and mass measurements in variable air mass regimes during the 7-SEAS/Dongsha experiment

Judith C. Chow, Can Li, John G. Watson, 2013 .

Vehicle-based road dust emission measurement: I—methods and calibration

John G. Watson, John A. Gillies, Hampden D. Kuhns, 2003 .

Guidance for the network design and optimum site exposure for PM2.5 and PM10

Judith C. Chow, John G. Watson, J. Chow, 1997 .

Characterization of gas and particle emissions from open burning of household solid waste from South Africa

J. Chow, J. Watson, Xiaoliang Wang, 2023, Atmospheric Chemistry and Physics.

The ammonium nitrate particle equivalent of NOx emissions for wintertime conditions in Central California's San Joaquin Valley

J. Watson, W. Stockwell, N. Robinson, 2000 .

The In-Plume Emission Test Stand: An Instrument Platform for the Real-Time Characterization of Fuel-Based Combustion Emissions

Claudio Mazzoleni, Dongzi Zhu, Hans Moosmüller, 2009, Journal of the Air & Waste Management Association.

Soil sample collection and analysis for the Fugitive Dust Characterization Study

Judith C. Chow, John G. Watson, Omar F. Carvacho, 2003 .

Estimation of personal exposure to fine particles (PM2.5) of ambient origin for healthy adults in Hong Kong.

J. Chow, J. Watson, K. Ho, 2019, The Science of the total environment.

Inter-comparison of elemental and organic carbon mass measurements from three North American national long-term monitoring networks at a co-located site

J. Chow, J. Watson, C. Czimczik, 2019, Atmospheric Measurement Techniques.

Refining temperature measures in thermal/optical carbon analysis

Judith C. Chow, John G. Watson, Dana L. Trimble, 2005 .

Seasonal and Spatial Variation of Solvent Extractable Organic Compounds in Fine Suspended Particulate Matter in Hong Kong

J. Chow, P. Louie, J. Watson, 2005, Journal of the Air & Waste Management Association.

Seasonal variations and mass closure analysis of particulate matter in Hong Kong.

J. Chow, J. Watson, Junji Cao, 2006, The Science of the total environment.

Characterization of Fine Particulate Emissions from Casting Processes

S. A. Sheya, J. Chow, J. Watson, 2005 .

Hot Filter/Impinger and Dilution Sampling for Fine Particulate Matter Characterization from Ferrous Metal Casting Processes

S. A. Sheya, J. Chow, J. Watson, 2008, Journal of the Air & Waste Management Association.

Chemically Speciated Air Pollutant Emissions from Open Burning of Household Solid Waste from South Africa

J. Chow, J. Watson, Xiaoliang Wang, 2023 .

Guidance for using continuous monitors in PM2.5 monitoring networks

Judith C. Chow, John G. Watson, J. Chow, 1998 .

Improved estimation of PM2.5 brown carbon contributions to filter light attenuation

L. Chen, J. Chow, J. Watson, 2021 .

Diesel engines: environmental impact and control--a critical review introduction.

J. Chow, J. Watson, P. Biswas, 2001, Journal of the Air & Waste Management Association.

Improvement of Engine Exhaust Particle Sizer (EEPS) size distribution measurement - II. Engine exhaust particles

Yang Li, Shaohua Hu, Judith C. Chow, 2016 .

Variations of nanoparticle concentrations at the Fresno Supersite.

J. Chow, J. Watson, N. Kreisberg, 2006, The Science of the total environment.

Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility

J. Chow, J. Watson, Renjian Zhang, 2012 .

Quality assurance and quality control for thermal/optical analysis of aerosol samples for organic and elemental carbon

L. Chen, J. Chow, J. Watson, 2011, Analytical and bioanalytical chemistry.

High time-resolution fenceline air quality sensing and dispersion modeling for environmental justice-centered source attribution

J. Chow, J. Watson, Yi Li, 2023, Atmospheric Environment.

PM2.5 pollution in China's Guanzhong Basin and the USA's San Joaquin Valley mega-regions.

J. Chow, J. Watson, Junji Cao, 2020, Faraday discussions.

Middle- and Neighborhood-Scale Variations of PM10 Source Contributions in Las Vegas, Nevada.

J C Chow, C. F. Rogers, J. Chow, 1999, Journal of the Air & Waste Management Association.

Source apportionment of atmospheric particulate carbon in Las Vegas, Nevada, USA

L. Chen, J. Chow, J. Watson, 2013 .

Comparison of Particle Light Scattering and Fine Particulate Matter Mass in Central California

J. Chow, J. Watson, N. Robinson, 2006, Journal of the Air & Waste Management Association.

Estimating aerosol light scattering at the Fresno Supersite

J. Chow, J. Watson, D. Lowenthal, 2008 .

A Method for Propagating Measurement Uncertainties through Dispersion Models

John G. Watson, Norman F. Robinson, Richard T. Egami, 1986 .

Temporal Variations of PM2.5, PM10, and Gaseous Precursors during the 1995 Integrated Monitoring Study in Central California.

J. Chow, J. Watson, D. Lowenthal, 1999, Journal of the Air & Waste Management Association.

Study of carbonaceous fractions associated with indoor PM2.5/PM10 during Asian cultural and ritual burning practices

J. Chow, J. Watson, S. Tiwari, 2016 .

Measurement of Both Nonvolatile and Semi-Volatile Fractions of Fine Particulate Matter in Fresno, CA

P. Hopke, J. Chow, J. Watson, 2006 .

Aerosol chemical and optical properties during the Mt. Zirkel Visibility Study.

J. Chow, J. Watson, D. Lowenthal, 2001, Journal of environmental quality.

Black Carbon Aerosol at McMurdo Station, Antarctica

J. Chow, J. Watson, D. Lowenthal, 2001, Journal of the Air & Waste Management Association.

Overview of Receptor Model Principles

John G. Watson, J. Watson, 1984 .

Optical Properties of Fine Mode Aerosols over High-Altitude Himalayan Glacier Regions

J. Chow, J. Watson, S. Tiwari, 2023, ACS Earth and Space Chemistry.

Stratospheric ozone, global warming, and the principle of unintended consequences--an ongoing science and policy success story.

J. Chow, J. Watson, G. Hidy, 2013, Journal of the Air & Waste Management Association.

Toward Effective Source Apportionment Using Positive Matrix Factorization: Experiments with Simulated PM2.5 Data

Stephen B. Reid, Naresh Kumar, L. Chen, 2010, Journal of the Air & Waste Management Association.

Second Generation Chemical Mass Balance Source Apportionment of Sulfur Oxides and Sulfate at the Grand Canyon during the Project MOHAVE Summer Intensive

J. Watson, D. Eatough, R. Farber, 2000, Journal of the Air & Waste Management Association.

Collocated comparisons of continuous and filter-based PM2.5 measurements at Fort McMurray, Alberta, Canada

J. Chow, J. Watson, Xiaoliang Wang, 2016, Journal of the Air & Waste Management Association.

Source apportionment of urban air pollutants using constrained receptor models with a priori profile information.

J. Chow, J. Watson, H. Liao, 2017, Environmental pollution.

Source and risk apportionment of selected VOCs and PM₂.₅ species using partially constrained receptor models with multiple time resolution data.

P. Hopke, J. Chow, J. Watson, 2015, Environmental pollution.

Measuring the Organic Carbon to Organic Matter Multiplier with Thermal/Optical Carbon-Quadrupole Mass Spectrometer Analyses

L. Chen, J. Chow, J. Watson, 2018, Aerosol Science and Engineering.

Vision 2020: 2000 Separations Roadmap

Earl Beaver, Sharon Robinson, Stephen Adler, 2000 .