The team of researchers used information on urban levels of ultrafine particulate matter -- PM 2.5 concentration -- from the daily air quality readings released by China’s Ministry of Environmental Protection. read more

The respondents-- minimum 50 people each from the 10 localities-- did not know the meaning of AQI and when the air in the national capital is categorised as good, moderate, poor or severe. read more

It is better not to be in Delhi, the Supreme Court said on Friday, expressing despair over the lack of implementation of measures to curb air pollution and traffic congestion in the capital which, it added, has become like a “gas chamber”. read more

The CPCB in three separate notices — all dated January 16 — held Delhi’s three civic bodies responsible for violation of green norms. read more

Officials said the air is expected to remain in the “severe” category – a classification when AQI is above 400 – till Saturday. read more

According to the CPCP notice to MCG, out of the 261 complaints forwarded by the CPCB app, 138 complaints were resolved—but not within a stipulated time duration of 24 hours. read more

As we respond to vehicular congestion by building road infrastructure, excluding key factors, such as data and kind of vehicles, from design plans could leave cities under a mound of cars. read more

The expert committee in its report has estimated that Volkswagen cars released approximately 48.678 tonnes of nitrogen oxide (NOx) in 2016 in the national capital. read more

NCAP, which was launched by India’s environment minister Harsh Vardhan last week, aims to reduce the concentration of PM 2.5 (fine, respirable pollution particles with a diameter of less than 2.5 micron) and PM 10 (coarse pollution particles) in 102... read more

“We thought the model of lungs will take at least six days to change colour, as it happened in New Delhi, but here (in Lucknow) it just took 24 hours,” said Ekta Shekher, founder of The Climate Agenda, an NGO, which installed the artificial lungs. read more

Each year thousands of migratory birds travel thousands of miles to settle around the beautiful lake of Kanpur zoological garden in this season. read more

Citizens’ groups, government agencies and corporates must collaborate for city’s good. United action can improve the impact and reach of interventions meant to fill the gaps left by city’s rapid growth. read more

In May 2017, lieutenant governor Anil Baijal had commissioned a project where 77 busiest stretches in Delhi were identified by the traffic police and had to be decongested by the Delhi government’s Public Works Department (PWD) and the civic agencie... read more

At least 3,000 CNG-powered buses will be rolled out, taking the fleet size of Delhi’s buses to 8,460. Though still short of the desired 11,000-mark, it should be enough to resuscitate the Delhi Transport Corporation that has not added a single bus to... read more

The national capital region witnessed light rains on Sunday as the air quality remained in the ‘very poor’ category. The rainfall at 8.30am was recorded at 4.3 mm, while the humidity level was 100%. read more