Sunday December 8, 2019

Delhi’s Air Quality Still Remains ‘Very Poor’

The pollution causing score of PM 2.5 was at 114 in the poor category while PM 10 was at 208 in the moderate category

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Air, Quality, Delhi
It cited the low wind speed and westerly wind direction as being unfavourable for air quality. Pixabay

For those living in and around Delhi, the coming days spell bad news as air quality entered the higher end of the poor category on Monday, with a worsening AQI score of 280, and is slated to enter the “very poor” threshold on Tuesday.

Yes, you heard it right, the blue skies that have been a complete treat for the Delhi-NCR over the last two months, off and on, are set to get grey.

The forecast of the “very poor” air quality is predicted mainly due to changing local weather conditions.

According to pollution watch by Safar (System of Air Quality and Weather Forecasting and Research) India, developed by Ministry of Earth Science and Indian Institute of Tropical Meteorology, Pune the overall air quality of Delhi is in the higher end of the poor category.

“Further deterioration of the AQI is expected by October 15 to very poor category,” it said.

India, air pollution, WHO, diwali, Pollution, Delhi, egypt, air quality
A man walks in front of the India Gate shrouded in smog in New Delhi, India. VOA

The stubble burning activity in Haryana, Panjab, and nearby border regions are moderate but increasing. Safar said it is not necessarily affecting Delhi air if distance weather conditions establishing transport pathways are not favourable.

In the present scenario, although the magnitude of biomass-related transport is not very high but upper winds are flowing from North-North West towards Delhi with good speed and hence favourable enough to influence Delhi AQI with a share of more than 8 per cent by tomorrow (Tuesday) as per SAFAR forecasting model.

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After the monsoon withdrawal, the surface wind speed in Delhi continues to be slow and variable with predominant direction from the Northwest.

The pollution causing score of PM 2.5 was at 114 in the poor category while PM 10 was at 208 in the moderate category. (IANS)

Next Story

Reduction in Air Pollution May Increase Life-Expectancy: Study

Findings of a Research indicate almost immediate and substantial effects on health outcomes followed reduced exposure to air pollution

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Pollution
Fortunately, reducing air Pollution can result in prompt and substantial health gains. Pixabay

Reductions in Air Pollution yielded fast and dramatic impacts on health-outcomes, as well as decreases in all-cause morbidity, a new study suggests.

The study, published in the journal Annals of the American Thoracic Society, reviewed interventions that have reduced air pollution at its source. It looked for outcomes and time to achieve those outcomes in several settings, finding that the improvements in health were striking.

Starting at week one of a ban on smoking in Ireland, for example, there was a 13 per cent drop in all-cause mortality, a 26 per cent reduction in ischemic heart disease, a 32 per cent reduction in stroke, and a 38 per cent reduction in chronic obstructive pulmonary disease (COPD). Interestingly, the greatest benefits in that case occurred among non-smokers.

“We knew there were benefits from pollution control, but the magnitude and relatively short time duration to accomplish them were impressive,” said lead author Dean Schraufnagel from the American Thoracic Society in the US.

“Our findings indicate almost immediate and substantial effects on health outcomes followed reduced exposure to air pollution. It’s critical that governments adopt and enforce WHO guidelines for air pollution immediately,” Schraufnagel added.

Pollution
Reductions in Air Pollution yielded fast and dramatic impacts on health-outcomes, as well as decreases in all-cause morbidity, a new study suggests. Pixabay

According to the researchers, In the US a 13-month closure of a steel mill in Utah resulted in reducing hospitalisations for pneumonia, pleurisy, bronchitis and asthma by half.

School absenteeism decreased by 40 per cent, and daily mortality fell by 16 per cent for every 100 µg/m3 PM10 (a pollutant) decrease.

Women who were pregnant during the mill closing were less likely to have premature births.

A 17-day ‘transportation strategy,’ in Atlanta, Georgia during the 1996 Olympic Games involved closing parts of the city to help athletes make it to their events on time, but also greatly decreased air pollution.

In the following four weeks, children’s visits for asthma to clinics dropped by more than 40 per cent and trips to emergency departments by 11 per cent. Hospitalizations for asthma decreased by 19 per cent.

WHO
Findings of the Study indicate almost immediate and substantial effects on health outcomes followed reduced exposure to air pollution. It’s critical that governments adopt and enforce WHO guidelines for air pollution immediately. Wikimedia Commons

Similarly, when China imposed factory and travel restrictions for the Beijing Olympics, lung function improved within two months, with fewer asthma-related physician visits and less cardiovascular mortality.

“Fortunately, reducing air pollution can result in prompt and substantial health gains. Sweeping policies affecting a whole country can reduce all-cause mortality within weeks,” Schraufnagel said.

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Local programmes, such as reducing traffic, have also promptly improved many health measures, said the study. (IANS)