Salem-2005

AMBIENT AIR QUALITY DATA
YEAR - 2005

Ambient Air Quality of Sowdeshwari College (Res. Area), Salem

Months of 2005	Sulphur dioxide			Nitrogen dioxide			Respirable Suspended Particulate Matter			Suspended Particulate Matter
Months of 2005	Avg.	Std. Dev	n	Avg.	Std. Dev	n	Avg.	Std. Dev	n	Avg.	Std. Dev	n
January	6	1	10	25	9	10	57	12	10	122	33	10
February	6	1	12	33	7	12	45	8	12	99	25	12
March	7	1	12	32	12	12	41	11	12	78	17	12

Note:- I – Industrial Areas, R – Residential and Other Areas
Avg. – Average concentration in mg/m³, Std Dev. – standard deviation, n – number of days on which monitoring is carried out for 16 and more hours a day