Hammond-141st

Data time: 11/8/2026 2:00 PM CST

Monitoring Site

Location

Address:: 1300 E. 141st St.
City:: Hammond
Latitude:: 41.639444
Longitude:: -87.493611
Region:: North West

Air Quality Information
Pollutant	Concentration	Units of Measure
SO2 1-Hour Average	0.9	PPB

Monitored Pollutants
Pollutant	Concentration	Units of Measure
O3	N/A	PPB
SO2	0.9	PPB

Meteorology
Measurement	Reading	Units of Measure
OT 10m	62.6	DEGF
RH 10m	41	PERCENT
RWD	273	DEG
RWS	12.1	MPH

Site Details

The Hammond 141th St. monitoring site began operating in August 1975. The monitoring objective is to measure ozone, SO2 and VOCs in Hammond.

Historical Data Concentration