According to the Bangladesh Environment Department, bricks are made in about 8000 brick kilns across the country. Around 4000 bricks were made in Gabtali, Savar, Ashulia, Keraniganj, Narsingdi, Gazipur and Manikganj. About 2 million tons of coal is burned in these brick kilns every year. Air bubbles from brick kilns contain carbon-rich particles, sulfur dioxide and carbon monoxide. All three of the spectators that are harmful to the environment are grown from brick kilns. In addition, a mixture of ash and dust and various gases flying in the brick opening can cause fog, smog and photochemical smog. Observations of agriculture around the brick field, observation of green pigment-chlorophyll on the leaves of plants occurs and causes pale green or yellow spots. SO, its effect on plant light
The synthesis process is interrupted. As a result the growth and productivity of the plant decreases. In many cases, the leaves of the plant have faded and dried out. In SO, the absorption of gas in the leaf cells is multiplied. These cells first become inactive and then die. As a result, the necrosis of the neighborhood is completely destroyed.The reaction of such gases with rain water produces acid and falls to the surface. This is called acid rain. The reason for low crop yields around brick yoga is that the pH of the water drops below 4.5 due to acid rain and damages the crop and the environment.
Incomplete combustion of fuel in brick kilns produces CO. The effect of CO is to reduce the nitrogen holding capacity of plants. The complex compound stable with the hemoglobin of CO forms karazhimoglobin. Toxicity of CO interferes with the transport of pure oxygen. One of the most harmful air pollutants from brick kilns is not rich in carbon particles. Asupari volatile organic compounds are also produced from the combustion of coal. Among the volatile organic compounds are benzene and
Benzene aromatic compounds, polycyclic
Aromatic hydrocarbons. Respiratory
In addition to problems, asthma, etc., these aromatic
The compound is considered a carcinogenic compound.
Different matter particles and gaseous air pollutants act as respirators enters through the crevice. In this case, respiratory and lung diseases are caused.