Data from the second day of the odd-even scheme on April 16 showed that many parts of central and south Delhi recorded high particulate matter levels despite the long weekend.
Data based on mobile air quality monitoring in 74 locations by the Delhi Pollution Control Committee (DPCC), for the odd-even scheme, shows that areas such as Janpath Road, Lodhi Colony, Race Course Road and Maulana Azad Medical College (MAMC) recorded PM 10 values above 200 — more than double the safety limit of 100 micrograms per cubic metre.
MAMC recorded PM 10 levels of 263 µg/m3 while Minto Road recorded the same pollutant at 249. Lodhi Colony and Race Course Road recorded the same pollutant at 234 and 239 µg/m3. In Janpath, PM 10 was 230. Many areas, such as IIT Delhi, recorded high PM 2.5 values of 80 µg/m3.
Northeast Delhi recorded the highest particulate matter levels in the city on both April 15 and 16, based on spot monitoring data. On April 16, Bhajanpura recorded the highest PM 2.5 and PM 10 levels at 257 and 577 µg/m3. Gokulpuri came a close second with the same pollutants measuring 190 and 424.
On April 15, Gokulpuri recorded the highest particulate matter levels in the city for both pollutants. PM 10 levels stood at 961 — over nine times the safe limit — and PM 2.5 at 416, nearly seven times the safe limit. In lung function tests, launched during the first phase, the area had recorded the highest cases of respiratory ailments.
Scientists say more intensive monitoring will follow over the next few days in northeast Delhi to understand the role of different sources of pollution. “Northeast Delhi has congested roads, industrial units bordering Ghaziabad, and is also near the Ghazipur landfill site. It is recognised as a high polluting area. But some areas are consistently showing high levels despite the odd-even scheme,” said a DPCC scientist.
Border areas recorded the highest PM 10 values, similar to the trends observed on the first day. On April 16, the Noida border recorded PM 2.5 and PM 10 at 78 and 160, while the area around 2 km inside Delhi at the border recorded the same pollutants at 115 and 237.
About 2 km inside Noida, PM 2.5 and PM 10 was recorded at 98 and 201. Government scientists said barring the Noida and Tikri borders, levels of particulate matter were much higher in the border areas outside Delhi.