Published:  05:04 AM, 12 October 2019

Air pollution causes concern in Chattogram

Air pollution causes concern in Chattogram Air pollution caused by black smoke emitted by unfit vehicles and dusts from open space has increased incidence of bronchitis, asthma and other respiratory-related diseases among the Chattogram city dwellers. -AA


The dust and sounds of vehicles are polluting the air in port city. The air and sound pollution have aggravated in Chattogram city, causing different diseases to the city dwellers, environmentalists and locals said.

Air pollution caused by black smoke emission by unfit vehicles and dusts from open space has increased bronchitis, asthma and other respiratory-related diseases among the city dwellers, physicians said.

Besides, people of different strata in Chattogram are also facing sound pollution caused by the hydraulic horns, power generators and wielding engineering workshops located in and around residential areas.

They said noise affects children physically and psychologically while normal life is being hampered by round-the-clock operations of the power generators in different posh residence in the city and wielding engineering workshops.

Experts said sound pollutions have reached nearly 200 decibel against its tolerable level of 60 decibel. They said air pollution from thousands of unfit vehicles reached 100 per cent against its maximum tolerable level of hard ridge smoke unit of 65 per cent.

Physicians feared that if such environmental degradation continues, respiratory deceases would increase manifold among city residents. Department of Environment (DoE), Chattogram office sources said the pollution is very high in a few jam-packed places of the city including Bahaddarhat crossing, GEC crossing, Newmarket, Agrabad, Chawkbazar and Andarkillah. Residents of Bahaddarhat and Chawk-bazar areas alleged that the situation worsens at night as wielding operators start their generators which create noise higher than the tolerable levels of sound.

  Continuous sound pollution may totally deafen the children as well as the adults, ENT specialists feared. ENT specialist said, "A noisy environment can affect children physically and psychologically." According to government guidelines, wielding engineering and lead machines, iron factories and generators must be set up at least one kilometre away from residences and power generators must be set up underground.

It is alleged that factory and wielding engineering owners and developers of the residential flats pay no heed to the complaints regarding the situation. Over 20,749 unfit light and heavy vehicles have been plying the roads of Chattogram city and its adjacent areas without fitness certificates and emitting black smokes.

Air pollution is one of a variety of manmade environmental disasters that are currently taking place all over the world. Air pollution may be defined as an atmospheric condition in which various substances are present at concentrations high enough above their normal ambient levels to produce a measurable effect on people, animals, vegetation, or materials. 'Substances' refers to any natural or manmade chemical elements or compounds capable of being airborne.

These may exist in the atmosphere as gases, liquid drops, or solid particles. It includes any substance whether noxious or  benign, however, the term 'measurable effect' generally restricts attention to those substances that cause undesirable effects. Air quality has deteriorated both due to human activities, and natural phenomenon such as windblown dust particles etc. There are two major sources of air pollution in Chattogram , vehicular emissions and industrial emissions. However, these are mainly concentrated in the cities.

Recently, air pollution has received priority among environmental issues in Bangladesh , as well as in other parts of the country. Exposure to air pollution is the main environmental threat to human health in many towns and cities.

Particulate emission is mainly responsible for increased death rate and respiratory problems for the urban population. This problem is acute in Chattogram being the city of the country and also the hub of commercial activity.Chattogram  is a major, cultural, and manufacturing center.

The common types of industries in and around the periphery of Chattogram  are ready-made garment manufacturing, jute, tanneries, textile, tea processing, fertilizer, cement, paper and pulp, chemicals and pesticides, food and sugar, pharmaceuticals, petroleum refinery, distillery, rubber, plastics, and brick manufacturing, assembling buses, trucks, and motorcycles, assembling radios and televisions. Air of Chattogram  is being polluted day by day very badly. The other urban areas .

Air and sound pollution in Chittagong city has reached an intolerable level, making the city dwellers suffer from different complicated diseases. Air pollution caused by emission of black smokes from unfit vehicles and dust from open space result in the increase of bronchitis, asthma and respiratory related diseases among the city dwellers for years. Physicians fear that if the situation continues, respiratory diseases will increase manifold among the city residents.

Besides, people of different strata in Chittagong are passing hard time tolerating sound pollution created by the hydraulic horns of vehicles, power generators and wielding engineering workshops located in and around residential areas. Experts said sound pollutions had reached nearly 200 decibel (dB) against its tolerable level of 60 (dB).

Meanwhile, environmentalists said air pollution from thousands of unfit vehicles reached 100 percent against 65 percent, the maximum tolerable level of Hartridge Smoke Unit (HSU).

According to government guidelines, wielding engineering and lead machines, iron factories and generators must be set up at least one kilometre away from residences and power generators must be set up underground, which remain unheeded.

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