Chennai: Air quality level

CHENNAI: The level of total suspended particulate matter (TSPM) in the ambient air at a traffic intersection in T. Nagar during the 24-hour period ending 6 a.m. on Tuesday was 343 microgram/cubic metre. The permissible limit for TSPM is 200 microgram/cubic metre.

However, the TSPM level during the same period at a residential area in Anna Nagar was well within the permissible limit, said a release from Tamil Nadu Pollution Control Board.

From THE HINDU

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