Delhi’s Air Quality Remains in “Poor” Category

Centre-run System of Air Quality and Weather Forecasting And Research (SAFAR) reported that the overall air quality in the national capital slightly improved but remained in the poor category with the Air Quality Index (AQI) clocking at 235.

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The concentration of particulate matter of 10 micrometres (PM10) — coarse particles suspended in the air — was 341 micrograms per cubic metre air (µg/m3) as of 5pm, against the 24-hour acceptable limit of 100 µg/m3.

The concentration of PM2.5 — particles that are smaller in size and are released from combustion activities — was about 105 µg/m3, a little higher than the 24-hour acceptable limit of 60 µg/m3.

The spike in PM10 concentration shows the impact of dust-laden winds on air quality, which, according to the Centre’s Early Warning System for Delhi, is expected to largely remain in poor category for the next five days.