Winter worsens Delhi's pollution levels

Delhi recorded 'unhealthy' level of air pollution on Wednesday with many parts of the city reporting high levels of PM 10 and PM 2.5.

After Delhi celebrated Dussehra, doctors in the national Capital are treating increasing number of patients with respiratory ailments. The extreme use of crackers during the celebrations have raised the level of pollution in the city. Delhi recorded 'unhealthy' level of air pollution on Wednesday with many parts of the city reporting high levels of PM 10 and PM 2.5. Read more

Courtesy: indiatoday

In air quality, victory of evil over good

GURGAON: The ritual of marking the victory of good over evil — burning Ravana effigies — had quite the opposite effect on air quality in Delhi-NCR, with the national capital, Gurgaon and Faridabad among the five most polluted cities in the country on Dussehra, according to data on 25 cities released by the Central Pollution Control Board.

Faridabad witnessed the worst pollution levels and had an air quality index (AQI) of 270, followed by Gurgaon (238) and Delhi (223), according to the CPCB report. The measurements were taken between October 11 afternoon and October 12 afternoon.

Air quality index is calculated by measuring the levels of various pollutants to come up with a number that denotes overall pollution. An AQI of 201-300 is 'poor', according to the standards followed by India. Read more

Courtesy: The Times of India

Delhi’s air takes giant leap to the pits

NEW DELHI: Delhi's air quality took a turn for the worse this week. A difficult season for the vulnerable — children, elderly and those with a compromised immune system — is in the offing, with pollution levels jumping four times in just 38 days between September 1 and October 8.

Delhi's air quality was "good" for a couple of months during the monsoons, became "moderate" mid-September onward and slid to "poor" towards September-end. In comparison, Mumbai, Hyderabad, Chennai, Pune and Kolkata continue to remain in the "good" category. Read more

Courtesy: The Times of India

Khanna sees fall in air pollution levels

KHANNA: Even as Khanna has achieved the dubious distinction of being among the world's 20 most polluted cities in the world, the recent data of the Punjab Pollution Control Board (PPCB) suggests some fall in the air pollution levels in this industrial city, though they continue to be higher than normal. The data suggests that the annual average for Khanna (recorded at two observatories) was 116.5 ppm (parts per million) in 2012, and after that it witnessed a jump and was recorded at 178.5 in 2013. The data suggests that RSPM (Respirable Suspended Particulate Matter) level for the city fell to 162.3 in 2014, and further to 122.5ppm last year.

Environment experts say Khanna has been notorious for high air pollution levels for quite a long time now. "Khanna has been one of the hotspots of air pollution, and has been showing high levels for quite some time now. The normal value for air pollution levels is around 100ppm, but if the value is more than 120 ppm, then there is a problem. The Punjab Pollution Control Board or the Central Pollution Control Board (CPCB) can make a local assessment of pollution sources, and frame an action plan to control the problem," said Anumita Roy Chowdhury, executive director, Research and Advocacy wing of the Centre for Science and Environment (CSE). Read more

Courtesy: The Times of India

Delhi vs Beijing: Toxic air threatens to choke Asian giants again

NEW DELHI: It is that time of the year again when the two giants of Asia resume their rather unwanted rivalry to 'showcase' capitals with the worst air quality. Even as the toxic air over Beijing reaches alarming proportions, breathing in New Delhi is fast catching up to be every bit as choking.

Delhi enjoyed relatively clean air over the last few months but the quality fell alarmingly+ by the end of September. On Monday evening, aqicn.org - an agency monitoring air quality in more than 60 countries - reported that PM2.5 had reached 180 micrograms in Delhi's Dwarka area. Around the same time, the average PM2.5 level in Beijing air was only marginally worse at 200 micrograms. Read more

Courtesy: The Times of India