Air quality level

: The level of Respirable Suspended Particulate Matter at a traffic intersection in T.Nagar and at a residential area in Anna Nagar was 123 microgram/cubic metre and 54 microgram/cubic metre respectively during the 24-hour period ending 6 a.m. on Tuesday. The permissible limit for RSPM is 100 microgram/cubic metre, said a release.

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