National Drinking Water Contaminant Occurrence Database Data on Primary Water Quality Standards (May 18, 2001)ELSEVIERThe Environmental Science of Drinking Water
NationalAmbientAirQualityStandards (NAAQS) TheCleanAirAct,whichwaslastamendedin1990,requiresEPAtosetNationalAmbient AirQualityStandards(40CFRpart50)forpollutantsconsideredharmfultopublichealth andtheenvironment.TheCleanAirActestablishedtwotypesofnationalairqualitystandards. Primarystandardssetlimitstoprotectpublichealth,incl...
Pollutant Carbon Monoxide Lead Nitrogen Dioxide Particulate Matter (PM10) Particulate Matter (PM2.5) Ozone National Ambient Air Quality Standards Primary Standards Secondary Standards Level Averaging Time Level Averaging Time 9 ppm (10 mg/m3) 8-hour (1) None 35 ppm (40 mg/m3) 1-hour (1) ...
National Ambient Air Quality Standards ? Primary Standards Secondary Standards Pollutant Level Averaging Time Level Averaging Time Carbon Monoxide 9 ppm (10 mg/m3) 8-hour (1) None 35 ppm (40 mg/m3) 1-hour (1) Lead 0.15 μg/m3 (2) Rolling 3-Month Average Same as Primary 1.5 μg/m3 ...
Among the households with access to an improved non-piped source, the majority (73.1% of the group equivalent to 17.9% of the total population) have water free fromE. colicontamination at the primary drinking water source. On the other hand, among those with access to a source considered un...
Total attendance in centralized training has surpassed 3,200 since the First Session of the 13th NPC, with essentially all primary-level deputies involved in study sessions on matters pertaining to their duties. We made coordinated arrangements for deputies to participate in activities promoting contact...
The annual average concentrations of fine particulate matter (PM2.5) decreased by 2.4% in the cities at and above prefecture level that fell short of the national standards. The proportion of surface water with a quality rating of Grade III or higher stood at 74.9%. The non-fossil fuel ...
Their two primary agenda items are decision-making and elections. The Party's 20th National Congress will offer a general overview of China's two-stage strategic plan to build a great, modern socialist country in all resp...
20, 2019 Record of Visit: Today I went to the fifth primary school of the county to learn about the progress of the children relocated to the county seat, especially the sons of He Guoqiang,as the couple was busy with work. The head teacher said that the Yao students adapted quickly to...
The National Environmental Health Performance Standards are the primary tool for assessing and building agency capacity to perform the ten essential environmental public health services. Following a period of field testing and revision, local and state environmental health agencies around the country have ...