Wednesday, June 19, 2019

Air Quality Index | Cumilla is Least Polluted



The atmospheric monitoring of the Environment Department of the Government declared that the air in Cumilla city is lowest among all other cities currently monitoring regularly based on the Air Quality Index report. Among total Sixteen air monitoring stations in the country, four are in Dhaka (Farmgate, Parliament House, Darussalam and Savar), two in Chittagong, One perpetual air monitoring station is located in Khulna, Rajshahi, Sylhet, Barisal, Mymensingh, Rangpur, Gazipur, Narayanganj, Comilla and Narsingdi.

The Air Quality Index (AQI) is a tool for reporting daily air quality of any city or country. It tells how clean or polluted the air is, and what associated health effects might be a concern for public. The AQI focuses on health effects that one might experience within a few hours or days after breathing polluted air.

The station indicates that among all the cities the air of Cumilla is most pure. The air pollutant parameter is estimated at PM 2.5. According to the Department of Environment, air quality in different cities of the country is as follows:
  • Chittagong 35
  • Gazipur 83
  • Narayanganj 85
  • Sylhet 39
  • Barisal 39
  • Mymensingh and Comilla 27 

Although it is incredible to hear, this information came out in the form of air quality standard monitoring station on Saturday (June 15th, 2019) Environment Department,

Air pollution is caused due to presence of carbon dioxide, lead, nitrogen oxide and other protruding particles in the air. Air in Savar area is very much polluted among all other areas in capital city Dhaka. Air Quality Index (air quality) for Dhaka city 115, but in Savar it is 135. Rangpur, a city that has more air pollutants than Dhaka, the air pollutant parameter in the city is 128.





In Bangladesh the AQI is based on 5 criteria pollutants; Particulate Matter (PM10 and PM2.5), NO2, CO, SO2 and Ozone (O3). The Department of Environment (DoE) has also set national ambient air quality standards for these pollutants. These standards aim to protect against adverse human health impacts.

Considering the health concerns, the of air quality index is:
  • Air quality is 0 to 50 means Good Quality.
  • Between 51 and 100 means Medium Quality.
  • Between 101 to 150 means Caution or Warning.
  • Between 151 to 200 means Unhealthy.
  • Between 201 to 300 means Very Unhealthy.
  • From 301 to 500 means Extremely Unsafe.

Savar in the capital Dhaka and Rangpur, these places are in caution / warning labels for health concerns. In Narayanganj and Gazipur area Health concern due to air pollution is medium. The lowest air pollution is in Comilla and Mymensingh district. Apart from this, Chittagong, Sylhet and Barisal are among the cities with significant health concerns.

Expert doctors say that due to air pollution, the risk of developing respiratory, heart disease, cancer and diabetes is created. Apart from this, obstructing the development of the child's intelligence, including disfigurement of the fetus in the mother's womb in the obstetricians.

Source: comillarkagoj


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