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EPA proposes strengthening primary annual NAAQS for PM2.5

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The US Environmental Protection Agency (EPA) announced a proposal to to revise the primary (health-based) annual PM 2.5 EPA is taking comment on the full range (between 8 and 11 10 µg/m 3 ) included in the Clean Air Scientific Advisory Committee’s (CASAC) latest report. Currently, EPA has primary and secondary standards for PM 2.5

EPA 273
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EPA to reconsider particulate matter NAAQS

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The US Environmental Protection Agency (EPA) announced that it will reconsider the previous administration’s decision to retain the particulate matter (PM) National Ambient Air Quality Standards (NAAQS) ( earlier post ), which were last strengthened in 2012. EPA sets both an annual and a 24-hour standard for fine particles (PM 2.5 ).

EPA 186
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EPA proposes retaining current NAAQS for particulate matter

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The US Environmental Protection Agency (EPA) is proposing to retain, without changes, the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM) including both fine particles (PM 2.5 ) and coarse particles (PM 10 ). EPA sets both an annual and a 24-hour standard for fine particles (PM 2.5 ).

EPA 186
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EPA providing up to $3M in funding to reduce diesel emissions from school buses

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Under the Environmental Protection Agency (EPA) National Clean Diesel Rebate program, public and private school bus fleet owners are eligible to apply for funding to replace school buses that have older, dirtier Diesel engines. Older diesel engines emit large amounts of pollutants, such as nitrogen oxides and particulate matter.

EPA 252
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EPA Proposes Transport Rule to Cut Pollution from Power Plants in 31 States and DC; New Approach for Pollution Reduction

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The US Environmental Protection Agency (EPA) is proposing regulations employing the “good neighbor” provision of the Clean Air Act to reduce interstate transport of upwind state emissions from power generation that contribute to air quality problems in downwind states. standards established in 2006 and the 1997 annual PM 2.5

Pollution 218
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Coalition of 11 states sues US EPA over soot rules

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A coalition of 11 states filed a lawsuit to compel the US Environmental Protection Agency (EPA) promptly to revise national air quality standards for air pollution involving soot. The EPA had failed to meet an October 2011 deadline for revising the existing standards. EPA last revised the standards in 2006.

EPA 231
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Indiana U study suggests cost-effectiveness of EPA air quality regs more uncertain than commonly believed

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The US EPA estimates that its air pollution regulations save thousands of lives annually. Graham of the IU School of Public and Environmental Affairs analyzed the costs and expected lifesavings of nine EPA air quality regulations issued between 2011 and 2013. Researchers Kerry Krutilla, David H. Good and John D.

Indiana 150