Air-Air Quality Standards (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 2 of 2

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Question number: 1

» Air » Air Quality Standards

Appeared in Year: 2015

MCQ▾

Question

According to National Ambient Air Quality Standards in India, the permissible 24-hour average concentration of lead in ambient air of an industrial area is: (December)

Choices

Choice (4) Response

a.

4.0μg/m3

b.

1.0μg/m3

c.

3.03μg/m3

d.

2.0μg/m3

Question number: 2

» Air » Air Quality Standards

Appeared in Year: 2014

MCQ▾

Question

According to National Ambient Air Quality Standards the annual average concentration of SPM in a residential area should not exceed (December)

Choices

Choice (4) Response

a.

80 µg/m3

b.

100 µg/m3

c.

140 µg/m3

d.

200 µg/m3

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