Consider the following statements with respect to National Ambient Air Quality Standards NAAQS ...........

Environment and Ecology Air Pollution

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Consider the following statements with respect to National Ambient Air Quality Standards (NAAQS):

1. NAAQS were notified in 1982 and as per 2009 revision consist of 12 pollutants.

2. Mercury, PM 10, PM 2.5 and arsenic are amongst the twelve notified pollutants under NAAQS.

Which of the above statements is/are correct?

1 only

2 only

both 1 and 2

neither 1 nor 2

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Explanation:

The US National Ambient Air Quality Standards (NAAQS, pronounced \'naks\) are standards established by the United StatesEnvironmental Protection Agency under authority of the Clean Air Act (42 U.S.C. 7401 et seq.) that apply for outdoor air throughout the country. Primary standards are designed to protect human health, with an adequate margin of safety, including sensitive populations such as children, the elderly, and individuals suffering from respiratory diseases. Secondary standards are designed to protect public welfare from any known or anticipated adverse effects of a pollutant. A district meeting a given standard is known as an "attainment area" for that standard, and otherwise a "non-attainment area"