Tuesday December 10, 2019

Researchers Find New Method to Track Pollution from Cooking

There is growing evidence that exposure to cooking oil fumes is linked to lung cancer, the study said

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cooking, pollution
FILE - A woman adjusts the charcoal in a stove next to cooking pots at a village about 30 km (19 miles) south of South Sudan's capital Juba, June 21, 2013. VOA

Researchers have found that black carbon is a good tracer to separate cooking organic aerosol from traffic-related pollution, paving the way for a new method to track pollution from cooking.

Cooking organic aerosol is one of the most important primary sources of pollution in urban environments.

By applying the black carbon tracer method to several data sets in mega cities of Beijing and Nanjing, the researchers found that cooking organic aerosol contributed 15-27 per cent to total organic aerosol in summer.

The findings published in the journal Geophysical Research Letters suggest that air quality improvements in developing countries could benefit substantially from the reduction of cooking emissions.

Air pollution
Death toll due to air pollution rises in India. Pexel

There is growing evidence that exposure to cooking oil fumes is linked to lung cancer, the study said.

A new method to separate cooking organic aerosol from traffic-related pollution is needed as it is often challenging to separate cooking organic aerosol from traffic-related organic aerosol due to the similarity of their unit mass resolution spectra.

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“Considering that aerosol chemical speciation monitor (ACSM) has been increasingly deployed worldwide for routine measurements of aerosol particle composition, our study might have significant implications for better source apportionment of OA ( organic aerosol) and exposure studies in the future,” said Yele Sun, Professor from Institute of Atmospheric Physics, Chinese Academy of Science. (IANS)

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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)