PM2.5 dust

Apportionment study to find source of pollution: MPPCB

The study will cover pollution from vehicles, construction work, industrial, housing and other activities. The cities to be studied are Bhopal, Indore, Ujjain, Dewas and Sagar. MPPCB officials said these five cities have been identified for carrying out the Sources Apportionment Study due to high pollution levels present there. The study will help identify reasons behind air pollution and arrive at a conclusion as to which source is causing how much pollution. Based on the findings, the authorities will try to cut down pollution levels.

However, the process will take time because experts point that at least three years are required for carrying out the study in one city. Besides, the cost of study is around Rs 1.5 crore per city.

Pollution is measured by taking into account level of sulphur dioxide (SO2), nitrogen oxide (Nox), RSPM10 and fine particulate matter (PM2.5) in the air. Cause of SO2 is vehicles. Nox is due to human activity, including vehicles and sewage among others. RSPM 10 is on account of dust, construction, including building of roads, while PM2.5 is as a result of dust, human activity and climatic conditions. Officials said that of the four, PM2.5 is most harmful for health since it goes inside human body and causes severe lung diseases.

PCB officials said respirable dust sampler instrument is used for measuring air pollution. Filter paper and cyclone are used for calculating PM10 (respirable particulate matter) and PM2.5, with the help of which dust particles are measured in the air, while absorbent solution helps measure if sulphur dioxide is present.

MPPCB chief chemist Shyamanuj Tiwari said the study, which is primarily based on measurements and tracking down the sources, will help in identifying the sources and the extent of their contribution. “In MP, it is being initiated by efforts of our member secretary AA Mishra. A workshop has been scheduled in the state capital on Thursday in which field experts will present case studies and their findings on ambient air quality in different cities,” he said.

Officials said air pollution problem becomes complex due to multiplicity and complexity of the sources, which include industries, automobiles, domestic fuel burning, dust on road and construction.

A cost-effective approach for improving air quality in polluted areas involves identification of emission sources, assessment of extent of contribution of these sources on ambient environment, prioritising the sources that need to be tackled, evaluating various options for controlling the sources and formulation and implementation of action plans.

In MP, air quality is monitored at 37 places, including Ujjain, Bhopal, Indore, Dhar, Gwalior, Jabalpur, Sagar, Satna, Singrauli, Shahdol and Katni. Of these, Bhopal has the maximum six air quality monitoring stations.

 Ambient air quality of Bhopal, Indore, Ujjain, Dewas and Sagar is moderate or close to moderate, which is just above poor category in ambient air quality index.

Read more at Times Of India

This weird machine working in China can also be very useful for Lahore. Do you know what it is?

While choking smog has reached over 25 times safe levels in the Chinese capital, two fog cannons have been launched in Beijing with the aim of reducing levels of harmful PM2.5 particles and dust.

The mobile blowers, also known as dust suppression systems or dust fighters, are designed to dampen the air and control particulate matter, and are normally found at coal depots and other industrial sites where dust is a problem, reports Beijing Morning Post.

The fog cannons consist of a high power turbine ventilator, which can spray a light rain to a distance of 120 meters, and 60 metres into the air. The operator can also rotate the “cannon” by 270 degrees via remote control.

The dust fighter machines used to battle smog in Beijing can make tiny water mist particles as small as dust.

The two machines will mainly be seen in key areas in the city – the Foreign Embassy area, the Olympic park, Asian Sports Village and Taikoo Li Sanlitun shopping area.

According to the Beijing Morning Post, the air becomes temporarily bright and clean after the dust fighter has passed by.

The machine usually makes two runs a day, but may need to be used 3 to 5 times a day on days with heavy smog.

According to the company providing the service, other districts in Beijing have expressed an

interest in the dust suppression system, so these fog cannons could become a very familiar sight on the streets of the Chinese capital.

Pakistan, a close partner of China, is also battling smog in its plains including Lahore, Gujranwala, Sahiwal, Faisalabad, and Rawalpindi. And these fog cannons can play a major role in bringing down the dangerous level of hazardous smog in Pakistan as well. The authorities in Pakistan must seriously think about it and ask its “all-weather friend” for this innovative invention to help control the rising smog.

r2

Article at Daily Pakistan

Fog Cannons Helping to Battle Beijing Smog

Two fog cannons have been set to work in Beijing with the aim of reducing levels of harmful PM2.5 particles and dust, reports Beijing Morning Post on Thursday.

The mobile blowers, also known as dust suppression systems or dust fighters, are designed to dampen the air and control particulate matter, and are normally found at coal depots and other industrial sites where dust is a problem.

The fog cannons consist of a high power turbine ventilator, which can spray a light rain to a distance of 120 meters, and 60 metres into the air. The operator can also rotate the “cannon” by 270 degrees via remote control. The dust fighter machines used to battle smog in Beijing can make tiny water mist particles as small as dust.

The two machines will mainly be seen in key areas in the city – the Foreign Embassy area, the Olympic park, Asian Sports Village and Taikoo Li Sanlitun shopping area.

The Beijing Morning Post reports that, after the dust fighter has passed by, the air becomes temporarily bright and clean.
The machine usually makes two runs a day, but may need to be used 3 to 5 times a day on days with heavy smog.

According to the company providing the service, other districts in Beijing have expressed an interest in the dust suppression system, so these fog cannons could become a very familiar sight on the streets of the capital.

See more at CRI English

I hope you enjoyed these articles!

Dust Monitoring Equipment – providing equipment, services and training in dust fallout management to the mining industry.

Comments are closed.