TheClean Air Act, which was last amended in 1990, requires EPA to setNational Ambient Air Quality Standards<40 CFR part 50> for pollutants considered harmful to public health and the environment. The Clean Air Act established two types of national air quality standards.Primary standardsset limits...
6) ambient air quality standard 环境空气质量标准 AAQS补充资料:大气环境质量标准 分子式:分子量:CAS号:性质:我国在1982年颁布的《大气环境质量标准》(GB 3095—82)分为三级:一级标准要求不发生任何危害影响的空气质量,适用于国家规定的自然保护区、风景游览区、名胜古迹和疗养地等;二级标准要求城市、乡村的动...
USEPA National Ambient Air Quality Standards for Lead; Final Rule 热度: NationalAmbientAirQualityStandards (NAAQS) TheCleanAirAct,whichwaslastamendedin1990,requiresEPAtosetNationalAmbient AirQualityStandards(40CFRpart50)forpollutantsconsideredharmfultopublichealth ...
1) National Ambient Air Quality Standard 国家环境空气质量标准 NAAQS2) National Ambient Air Quality Standards 全国环境空气质量标准 例句>> 3) National Ambient Air Quality Objective 国家环境空气质量目标 NAAQO4) ambient air quality standard 环境空气质量标准 例句>> ...
Ozone National Ambient Air Quality StandardZachary L. Craft
and domestic animals). NAAQS requires the EPA to set standards on six criteria air contaminants: Ozone (O3) Particulate Matter PM10, coarse particles: 2.5 micrometers (μm) to 10 μm in size (although current implementation includes all particles 10 μg or less in the standard) PM2.5, fine...
National Ambient Air Quality Standard for Fine Particulate Matter Revised.The article focuses on the revision of the primary national ambient air quality standard (NAAQS) for fine particulate matter (PM) by the U.S. Environmental Protection Agency (EPA) on January 15, 2013. It notes that the ...
NASNew American Standard(bible version) NASNetwork Access Server NASNetworked Attached Storage NASNational Airspace System NASNational Autistic Society(UK) NASNorwegian Air Shuttle(Norwegian commercial air carrier) NASNational Association of Scholars ...
Following these guidelines and standards, the Japanese Ministry of the Environment established the National Ambient Air Quality Standards for PM2.5 in 2009. The daily average standard of 35 μg/m3 and the annual average standard of 15 μg/m3 were established based on the standards set in the ...
Before implementing stringent regulations of ambient PM 2.5, analysts should pause to consider whether the accumulated evidence is sufficient, and sufficiently detailed, to support the PM 2.5 National Ambient Air Quality Standard. We take two tacks. First, we analyze the toxicologic evidence, finding ...