The record of sedimentary spheroidal carbonaceous particles (SCPs) in Beppu Bay, southern Japan, compared to historical trends of industrial activity and atmospheric pollution: Further evidence for SCPs as a marker for Anthropocene industrialization

Spheroidal carbonaceous particles (SCPs) are carbonaceous fly ash particles produced solely from industrial fossil fuel combustion. SCPs in sediments can be an indicator of past industrialization. We examined the sedimentary SCP record in Beppu Bay, southern Japan, and compared this record to historical trends of industrial activity and monitoring data for atmospheric pollutions in the region. Beppu Bay has varved sediments in the absence of bioturbation, providing an ideal situation for SCP study. Our results show that the temporal variation of SCP deposition is consistent with the trends of industrial activity and the temporal variation of status of atmospheric pollution. We conclude that undisturbed sediments such as Beppu Bay sediments have SCP records that adequately represent historical trends of industrial activity and atmospheric pollution in detail. These findings support that SCPs are a potential marker for the Anthropocene, characterized by industrialization.

[1]  P. Leavitt,et al.  Human-induced marine degradation in anoxic coastal sediments of Beppu Bay, Japan, as an Anthropocene marker in East Asia , 2021, Anthropocene.

[2]  Shuai Yin.  Decadal trends of MERRA-estimated PM2.5 concentrations in East Asia and potential exposure from 1990 to 2019 , 2021, Atmospheric Environment.

[3]  Y. Inouchi,et al.  Postglacial anthropogenic fires related to cultural changes in central Japan, inferred from sedimentary charcoal records spanning glacial–interglacial cycles , 2021, Journal of Quaternary Science.

[4]  K. Osada,et al.  Elemental compositions and sizes of carbonaceous fly ash particles from atmospheric deposition collected at Cape Hedo, Okinawa, Japan: Implications for their long-range transportation and source region variation , 2020 .

[5]  M. Leng,et al.  Historical atmospheric pollution trends in Southeast Asia inferred from lake sediment records. , 2018, Environmental pollution.

[6]  R. Leinfelder,et al.  Global Boundary Stratotype Section and Point (GSSP) for the Anthropocene Series: Where and how to look for potential candidates , 2017 .

[7]  Erle C. Ellis,et al.  The Working Group on the Anthropocene: Summary of evidence and interim recommendations , 2017 .

[8]  Erle C. Ellis,et al.  The Anthropocene is functionally and stratigraphically distinct from the Holocene , 2016, Science.

[9]  E. Watson,et al.  Spheroidal carbonaceous particles are a defining stratigraphic marker for the Anthropocene , 2015, Scientific Reports.

[10]  Xiaole Pan,et al.  Source region attribution of PM2.5 mass concentrations over Japan , 2015 .

[11]  N. Rose.  Spheroidal carbonaceous fly ash particles provide a globally synchronous stratigraphic marker for the Anthropocene. , 2015, Environmental science & technology.

[12]  M. Hayashi,et al.  Impact of long-range transport of aerosols on the PM2.5 composition at a major metropolitan area in the northern Kyushu area of Japan , 2014 .

[13]  T. Okudaira,et al.  Chemical characteristics of Northeast Asian fly ash particles: Implications for their long-range transportation , 2014 .

[14]  Xiaole Pan,et al.  Sensitivity analysis of source regions to PM2.5 concentration at Fukue Island, Japan , 2014, Journal of the Air & Waste Management Association.

[15]  M. Ikehara,et al.  Stratigraphy and wiggle-matching-based age-depth model of late Holocene marine sediments in Beppu Bay, southwest Japan , 2013 .

[16]  T. Okudaira,et al.  The Use of Size Distributions of Spheroidal Carbonaceous Particles in Swimming Pool Deposits for Evaluating Atmospheric Particle Behaviour , 2013, Water, Air, & Soil Pollution.

[17]  T. Okudaira,et al.  Characteristic Differences in the Chemical Composition of Spheroidal Carbonaceous Particles in Japanese and Chinese Cities , 2012, Water, Air, & Soil Pollution.

[18]  T. Okudaira,et al.  Relationship between surface morphology and chemical composition of spheroidal carbonaceous particles within sediment core samples recovered from Osaka Bay, Japan , 2010 .

[19]  N. Rose,et al.  The temporal record and sources of atmospherically deposited fly-ash particles in Lake Akagi-konuma, a Japanese mountain lake , 2009 .

[20]  N. Rose.  Quality control in the analysis of lake sediments for spheroidal carbonaceous particles , 2008 .

[21]  A. Petrusek,et al.  What can size distribution of spheroidal carbonaceous particles reveal about their source , 2006 .

[22]  D. Monteith,et al.  Temporal trends in spheroidal carbonaceous particle deposition derived from annual sediment traps and lake sediment cores and their relationship with non-marine sulphate. , 2005, Environmental pollution.

[23]  S. Juggins,et al.  Fuel-type characterization of carbonaceous fly-ash particles using EDS-derived surface chemistries and its application to particles extracted from lake sediments , 1996, Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[24]  Edward D. Goldberg,et al.  Sphericity as a characteristic of solids from fossil fuel burning in a Lake Michigan sediment , 1981 .

[25]  E. Goldberg,et al.  Morphologies and Origin of Elemental Carbon in the Environment , 1979, Science.

[26]  K. Takemura,et al.  Long-term fire activity under the East Asian monsoon responding to spring insolation, vegetation type, global climate, and human impact inferred from charcoal records in Lake Biwa sediments in central Japan , 2018 .

[27]  S. Juggins,et al.  A spatial relationship between carbonaceous particles in lake sediments and sulphur deposition , 1994 .