Air pollution characteristics and health risks in Henan Province, China

ABSTRACT Events of severe air pollution occurred frequently in China recently, thus understanding of the air pollution characteristics and its health risks is very important. In this work, we analyzed a two‐year dataset (March 2014 – February 2016) including daily concentrations of six criteria pollutants (PM2.5, PM10, CO, SO2, NO2, and O3) from 18 cities in Henan province. Results reveal the serious air pollution status in Henan province, especially the northern part, and Zhengzhou is the city with the worst air quality. Annual average PM2.5 concentrations exceed the second grade of Chinese Ambient Air Quality Standard (75 &mgr;g/m3) at both 2014 and 2015. PM2.5 is typically the major pollutant, but ozone pollution can be significant during summer. Furthermore, as the commonly used air quality index (AQI) neglects the mutual health effects from multiple pollutants, we introduced the aggregate air quality index (AAQI) and health‐risk based air quality index (HAQI) to evaluate the health risks. Results show that based on HAQI, the current AQI system likely significantly underestimate the health risks of air pollution, highlighting that the general public may need stricter health protection measures. The population‐weighted two‐year average HAQI data further demonstrates that all population in the studied cities in Henan province live with polluted air – 72% of the population is exposed to air that is unhealthy for sensitive people, while 28% of people is exposed to air that can be harmful to healthy people; and the health risks are much greater during winter than during other seasons. Future works should further improve the HAQI algorithm, and validate the links between the clinical/epidemiologic data and the HAQI values. HighlightsTwo‐year air quality data shows the serious air pollution status in Henan province.Average PM2.5 concentration is above the CAAQS Grade II standard.Current AQI likely significantly underestimates the health risks of air pollution.Population‐weighted HAQI shows that all people in the studied cities is exposed to polluted air.

[1]  Cheng-zhen Wu,et al.  Spatial and temporal characteristics of air quality and air pollutants in 2013 in Beijing , 2016, Environmental Science and Pollution Research.

[2]  Jianjun He,et al.  Annual and diurnal variations of gaseous and particulate pollutants in 31 provincial capital cities based on in situ air quality monitoring data from China National Environmental Monitoring Center. , 2016, Environment international.

[3]  Alexis K.H. Lau,et al.  Developing a risk-based air quality health index , 2013 .

[4]  Pavlos A Kassomenos,et al.  Development of an aggregate Air Quality Index for an urban Mediterranean agglomeration: relation to potential health effects. , 2007, Environment international.

[5]  Roger Atkinson,et al.  Atmospheric degradation of volatile organic compounds. , 2003, Chemical reviews.

[6]  Bin Zhao,et al.  Spatiotemporal variations of PM2.5 and PM10 concentrations between 31 Chinese cities and their relationships with SO2, NO2, CO and O3 , 2015 .

[7]  P. Fu,et al.  Airborne particulate matter pollution in urban China: a chemical mixture perspective from sources to impacts , 2017 .

[8]  Neha Khanna,et al.  Measuring environmental quality: an index of pollution , 2000 .

[9]  Y. Q. Wang,et al.  Spatial distribution and interannual variation of surface PM 10 concentrations over eighty-six Chinese cities , 2010 .

[10]  Yan-lin Zhang,et al.  Fine particulate matter (PM2.5) in China at a city level , 2015, Scientific Reports.

[11]  Qi Zhang,et al.  Observation of Fullerene Soot in Eastern China , 2016 .

[12]  C E Kolb,et al.  Guest Editor: Albert Viggiano CHEMICAL AND MICROPHYSICAL CHARACTERIZATION OF AMBIENT AEROSOLS WITH THE AERODYNE AEROSOL MASS SPECTROMETER , 2022 .

[13]  S. Herndon,et al.  An Aerosol Chemical Speciation Monitor (ACSM) for routine monitoring of atmospheric aerosol composition , 2009 .

[14]  Aditya Tyagi,et al.  Formation of an Air Pollution Index. , 1999, Journal of the Air & Waste Management Association.

[15]  Qi Ying,et al.  Spatial and temporal variations of six criteria air pollutants in 31 provincial capital cities in China during 2013-2014. , 2014, Environment international.

[16]  A. Piazzalunga,et al.  High secondary aerosol contribution to particulate pollution during haze events in China , 2014, Nature.

[17]  Wei Huang,et al.  Systematic review of Chinese studies of short-term exposure to air pollution and daily mortality. , 2013, Environment international.

[18]  Qi Zhang,et al.  Ubiquity and dominance of oxygenated species in organic aerosols in anthropogenically‐influenced Northern Hemisphere midlatitudes , 2007 .

[19]  Hongliang Zhang,et al.  Contributions of local and regional sources of NOx to ozone concentrations in Southeast Texas , 2011 .

[20]  Hongliang Zhang,et al.  Characterizing multi-pollutant air pollution in China: Comparison of three air quality indices. , 2015, Environment international.

[21]  Qi Ying,et al.  Spatial and temporal variability of PM2.5 and PM10 over the North China Plain and the Yangtze River Delta, China , 2014 .

[22]  Jianjun He,et al.  Air pollution characteristics and their relation to meteorological conditions during 2014-2015 in major Chinese cities. , 2017, Environmental pollution.

[23]  Ruiqin Zhang,et al.  PM2.5 in an industrial district of Zhengzhou, China： Chemical composition and source apportionment , 2013 .

[24]  Qi Zhang,et al.  Highly time-resolved urban aerosol characteristics during springtime in Yangtze River Delta, China: insights from soot particle aerosol mass spectrometry , 2016 .

[25]  Hongliang Zhang,et al.  Comparison of the SAPRC07 and SAPRC99 photochemical mechanisms during a high ozone episode in Texas: Differences in concentrations, OH budget and relative response factors , 2012 .

[26]  Mindong Chen,et al.  Aerosol characteristics and sources in Yangzhou, China resolved by offline aerosol mass spectrometry and other techniques. , 2017, Environmental pollution.

[27]  Huizheng Che,et al.  Spatial and temporal variations of the concentrations of PM 10 , PM 2.5 and PM 1 in China , 2015 .

[28]  D. Dockery,et al.  Health Effects of Fine Particulate Air Pollution: Lines that Connect , 2006, Journal of the Air & Waste Management Association.

[29]  D. Dockery,et al.  Air pollution and life expectancy in China and beyond , 2013, Proceedings of the National Academy of Sciences.

[30]  R. Harrison,et al.  Particles, air quality, policy and health. , 2012, Chemical Society reviews.

[31]  Qun Xu,et al.  Fine Particulate Matter Constituents and Cardiopulmonary Mortality in a Heavily Polluted Chinese City , 2012, Environmental health perspectives.

[32]  Hongliang Zhang,et al.  Characterization of criteria air pollutants in Beijing during 2014–2015 , 2017, Environmental research.

[33]  M. Zunckel,et al.  A novel air pollution index based on the relative risk of daily mortality associated with short-term exposure to common air pollutants , 2007 .