关于PM 25的深度全英文报告介绍-PPT.ppt

Brief introduction of investigation into
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Introduction into (particulate matter)
PM divided and nominated by diameter:
TSP total suspended particle
coarse particle PM10
fine particle
ultrafine particle PM with diameter <100nm
nanoparticle <10nm
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<100nm
Mass distributions showing multi-sources of PM
Combustion Aerosols: Factors Governing Their Size and Copmposition and Implications to Human Health, Journal of the Air&Waste Management Associat ion, 50: 9, 1565-1618
微珠
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Scale paring PM to structures in human alveoli
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Sources of American nationwide
Combustion Aerosols: Factors Governing Their Size and Copmposition and Implications to Human Health, Journal of the Air&Waste Management Associat ion, 50: 9, 1565-1618
扬尘
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Particle core of carbonaceous material
organic carbon:PAHs(多环芳烃), nitro-PAHs, quinones(类醌)
translational metals: Fe Ni Cu V(钒) Co Cr
biologic origin materials: virus, bacteria, endotoxins
soluble ponents: nitrates(NO3-), sulfates(SO42-), ammonium(NH4+)
other ponents
has plicated contents
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Combustion Aerosols: Factors Governing Their Size and Copmposition and Implications to Human Health, Journal of the Air&Waste Management Associat ion, 50: 9, 1565-1618
多环芳烃
二烷酸
Chemical analysis of exhaust emissions plicated ponents in
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Some related hallmarks in air pollution research
three severe air pollution events:
Meuse Valley(Belgium,1930)
London fog(1952)
Los Angeles photochemical smog(1940s)
by 1970s, correlation between acute increases in mortality and high concentrations of air particulate
1989-1996 Epidemiological studies
1997 EPA firstly imposed limits on
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An association between air pollution and mortality in six . cities. N Engl J Med. 1993:329:1753-1759
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PM10
Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution. Journal of American Medical Association 2002; 287:1132-1141.
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