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The WHO first released the air quality guidelines in 1987, then updated them in 1997. [2] The reports provide guidelines intending to give guidelines to reduce the health effects of air pollution. [2]
Air quality regulation must identify the substances and energies which qualify as "pollution" for purposes of further control.While specific labels vary from jurisdiction to jurisdiction, there is broad consensus among many governments regarding what constitutes air pollution.
The major river in Ethiopia is the Blue Nile. However, most drinking water in Ethiopia comes from ground water, not rivers. Ethiopia has 12 river basins with an annual runoff volume of 122 billion m 3 of water and an estimated 2.6–6.5 billion m 3 of ground water potential.
The EPA reviewed this NAAQS in 1985 and 1996, and in both cases concluded that the existing standard was sufficient. The most recent review by the EPA occurred in 2010, resulting in a new 1-hour NO 2 primary standard set at 100 ppb; the annual average of 0.053 ppm remained the same. Also considered was a new 1-hour secondary standard of 100 ppb.
Members of President-elect Donald Trump's transition team are drawing up a list of military officers to be fired, potentially to include the Joint Chiefs of Staff, two sources said, in what would ...
An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [2] [3] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or ...
The standard in court, set in the case of Bill Clinton v. Paula Jones by the Supreme Court in 1997, is that sitting presidents don’t have immunity from civil lawsuits. Yet the case also held ...
Image credits: onepersononeidea As of 2023/2024, close to 146 million people in the US alone shared their home with a pet, Statista reports.Out of them, the majority (as many as 65 million) lived ...