Parameter

Temperature

Humidity

NO₂

SO₂

PM _2.5

0010-0800

26

41

18.12

1.68

30

0810-1600

27

39

17.3

2.10

18

1610-2400

27

40

20.85

2.46

37

24 hours Average

26.6

39.6

18.75

2.08

28.33

NEQS Value

80 µg/m³

120 µg/m³

35 µg/m³

Note: 

Concentration of all three parameters viz. NO 2 , SO 2 and Particulate  Matter of size less than 2.5 microns (PM 2.5 ) are below the permissible limits of National Environmental Quality Standards (NEQS). Air quality is considered satisfactory, and air pollution poses no risk. Readings taken 24 hours a day by Pakistan Environmental Protection Agency in Islamabad.