Delhi for January 2005

AMBIENT AIR QUALITY DATA
YEAR - 2005

Ambient Air Quality of Delhi for January 2005

Location	Type of Area	Sulphur dioxide			Nitrogen dioxide			Respirable Suspended Particulate Matter			Suspended Particulate Matter
Location	Type of Area	Avg.	Std. Dev	n	Avg.	Std. Dev	n	Avg.	Std. Dev	n	Avg.	Std. Dev	n
Mayapuri Industrial Area	I	16	5	8	57	20	8	256	71	8	480	121	8
Sarojini Nagar	R	4	2	8	71	14	8	180	60	8	284	88	8
Town hall	R	5	4	8	93	29	8	216	67	8	425	104	8

Note:- I – Industrial Areas, R – Residential and Other AreasAvg. – Average concentration in m g/m³, Std Dev. – standard deviation, n – number of days on which monitoring is carried out for 16 and more hours a day. Monitoring station at Town hall is located near busy traffic area resulting in high NO₂ values.