The article “Dust contamination situations at Dhaka Metropolitan city : sources, hazards, management and awareness” is an excellent contribution covering on more than 60 sources of dust contaminations at Dhaka Metropolitan city. Dusts, clay colloids, colloidal dusts, nano particles or particulate matters work as air pollutants containing hazardous and toxic chemicals and different heavy metals. From November 2024 to March 2025 there was no rainfall but plants of all categories were covered with 30-100% dust layers where transpiration was totally absent (blocked). Because of the huge dusts, Dhaka faced many days as one of the major air-polluted cities in the world. High air pollution caused various health hazards like cough, fever, mental disorders, heat diseases, allergy, headache, vomiting or vomiting tendency, pneumonia, diarrhea, skin diseases, sleepless nights, problems of visions, various eye diseases, running of nose-flow, ashma, diabates, blood pressures, cancer and even to death. Heavy metals also create a lot of diseases particularly As, Pb, Cr, Ni, Hg etc. Dust contaminations were found to be variable on the basis of 20 factors of varieties of land producing and movement of dust to the air. Through wide study and previous 3-4 related articles, a large number of air pollution management guidelines were established and also 30 basic new awareness universal slogans were developed for proper solving the air pollution and minimizing health hazards at Dhaka urban environment.
Key words: Air pollution, contamination, sources, heavy meal pollution, health hazards, management, awareness.
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