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The health benefits of cycling and walking outweigh the harmful effects of China Wholesale EPTFE waterproof and breathable membrane Suppliers air pollution, a study suggestsAir pollution contributes to 40,000 early deaths each year in the UK and we gulp in more of it when we exercise.On the other hand, regular exercise reduces the risk of diabetes, heart disease, and several cancers.The University of Cambridge study showed that even in cities with high pollution levels, the benefits outweigh the risks.

The researchers used computer simulations to compare data on different kinds of physical activity and different levels of air pollution in locations around the world.It found that for an average air pollution concentration in an urban area, the tipping point — when the risks begin to outweigh the benefits — comes after a huge seven hours of cycling or 16 hours of walking a day.It is far beyond what most people would ever do."Even in Delhi, one of the most polluted cities in the world — with pollution levels 10 times those in London — people would need to cycle over five hours per week before the pollution risks outweigh the health benefits," said Dr Marko Tainio, the lead author of the study.He added, "We should remember, though, that a small minority of workers in the most polluted cities, such as bike messengers, may be exposed to levels of air pollution high enough to cancel out the health benefits of physical activity."

The study, published in Preventive Medicine, said exercise was always beneficial in London.‘Action still needed’The average air pollution level for cities around the globe is 22 micrograms per cubic metre, according to the World Health Organisation (WHO). In London the air pollution level was recorded at 16 micrograms per cubic metre in 2011.Senior author Dr James Woodcock added: "Whilst this research demonstrates the benefits of physical activity in spite of air quality, it is not an argument for inaction in combating pollution. It provides further support for investment in infrastructure to get people out of their cars and onto their feet or their bikes — which can itself reduce pollution levels at the same time as supporting physical activity."

Mumbai: Experts have contended that even with normal temperature of 29-28 degrees Celsius, the city is enveloped with a thick layer of haze, attributing it to conditions that reflect smog. Indian Institute of Tropical Meteorology (IITM) that looks into the air quality of the country stated that smog is an indicator of increasing air pollution in the city.Gufran Beig, deputy director, IITM stated that after the strong winds of Cyclone Ockhi, Mumbai is now experiencing relatively lower wind speeds, due to which the pollutants are left suspended in the air."The hazy conditions can be attributed partly to the air pollution as the air quality of the city has been recorded as poor.

The calmer winds and increased moisture in the air is holding in the city’s pollutants, resulting in China The ePTFE air filter membrane Manufacturers smog," said Gufran Beig.Officials at Skymet Weather have maintained that with the decreasing air quality the thick haze is a smog situation and will exist for a shorter duration, given the weather conditions. "Since the temperature is moderate along with poor air quality index and there are reports of visibility being reduced to 50 metres, the haze condition is the smog surfacing in the city’s air," said Mahesh Palawat, chiefmeteorologist, Skymet Weather.

Mumbai: Mumbai saw remarkably clean air on Saturday as the Air Quality Index (AQI), an indicator of pollutants in the air, recorded 56, falling under ‘satisfactory’ category.Experts have stated that the air quality will remain the same for the next few days owing to the increase in wind speed.According to System of Air Quality Weather Forecasting and Research (SAFAR), the air quality at all the nine locations that  are monitored fell under the ‘satisfactory’ as well as ‘good’ categories."Mumbai is experiencing extremely good wind speed which is dispersing the pollutants in the air in fast manner.

As such, there is no time for the pollutants to settle on the surface," said Gufran Beig, project director, SAFAR.  Among the locations, the air quality at Andheri was the cleanest, with AQI recorded 24 followed by Malad, Bhandup and Colaba, falling in ‘good’ category. BKC and Mazagaon and Navi Mumbai recorded higher levels of pollutants with AQI at 80, as compared to other locations.The increasing wind speed turned favourable for the city’s weather too. The maximum temperature recorded for Saturday was 33.4 degrees, while the minimum temperature stood at 23.8 degrees, one degree below the normal.The maximum humidity levels were recorded 76 per cent during the day.