scholarly journals Economic Analysis of a Japanese Air Pollution Regulation: An Optimal Retirement Problem under Vehicle Type Regulation in the NOx-Particulate Matter Law

2008 ◽  
Author(s):  
Kazuyuki Iwata ◽  
Toshi H. Arimura
Keyword(s):  
Air Pollution ◽  
Particulate Matter ◽  
Economic Analysis ◽  
Vehicle Type ◽  
Pollution Regulation ◽  
Air Pollution Regulation

scholarly journals Conservation cobenefits from air pollution regulation: Evidence from birds

2020 ◽  
Vol 117 (49) ◽  
pp. 30900-30906 ◽  
Author(s):  
Yuanning Liang ◽  
Ivan Rudik ◽  
Eric Yongchen Zou ◽  
Alison Johnston ◽  
Amanda D. Rodewald ◽  
...  
Keyword(s):  
Air Pollution ◽  
Large Scale ◽  
Population Decline ◽  
The United States ◽  
Bird Conservation ◽  
Bird Abundance ◽  
Bird Populations ◽  
The Past ◽  
Pollution Regulation ◽  
Air Pollution Regulation

Massive wildlife losses over the past 50 y have brought new urgency to identifying both the drivers of population decline and potential solutions. We provide large-scale evidence that air pollution, specifically ozone, is associated with declines in bird abundance in the United States. We show that an air pollution regulation limiting ozone precursors emissions has delivered substantial benefits to bird conservation. Our estimates imply that air quality improvements over the past 4 decades have stemmed the decline in bird populations, averting the loss of 1.5 billion birds, ∼20% of current totals. Our results highlight that in addition to protecting human health, air pollution regulations have previously unrecognized and unquantified conservation cobenefits.

scholarly journals In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity

2015 ◽  
Vol 15 (16) ◽  
pp. 9577-9591 ◽  
Author(s):  
M. Beekmann ◽  
A. S. H. Prévôt ◽  
F. Drewnick ◽  
J. Sciare ◽  
S. N. Pandis ◽  
...  
Keyword(s):  
Air Pollution ◽  
Particulate Matter ◽  
Air Quality ◽  
Fine Particulate Matter ◽  
Organic Aerosol ◽  
Satellite Measurement ◽  
Fine Particulate ◽  
Wood Burning ◽  
Air Pollution Regulation

Abstract. A detailed characterization of air quality in the megacity of Paris (France) during two 1-month intensive campaigns and from additional 1-year observations revealed that about 70 % of the urban background fine particulate matter (PM) is transported on average into the megacity from upwind regions. This dominant influence of regional sources was confirmed by in situ measurements during short intensive and longer-term campaigns, aerosol optical depth (AOD) measurements from ENVISAT, and modeling results from PMCAMx and CHIMERE chemistry transport models. While advection of sulfate is well documented for other megacities, there was surprisingly high contribution from long-range transport for both nitrate and organic aerosol. The origin of organic PM was investigated by comprehensive analysis of aerosol mass spectrometer (AMS), radiocarbon and tracer measurements during two intensive campaigns. Primary fossil fuel combustion emissions constituted less than 20 % in winter and 40 % in summer of carbonaceous fine PM, unexpectedly small for a megacity. Cooking activities and, during winter, residential wood burning are the major primary organic PM sources. This analysis suggests that the major part of secondary organic aerosol is of modern origin, i.e., from biogenic precursors and from wood burning. Black carbon concentrations are on the lower end of values encountered in megacities worldwide, but still represent an issue for air quality. These comparatively low air pollution levels are due to a combination of low emissions per inhabitant, flat terrain, and a meteorology that is in general not conducive to local pollution build-up. This revised picture of a megacity only being partially responsible for its own average and peak PM levels has important implications for air pollution regulation policies.

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