The Guardian (Nigeria)

Health Issues To Know About Soot, Protective Measures

- By Geraldine Akutu

AS residents of Port Harcourt and its environs grapple with the black soot, the latest atmospheri­c challenge they have to live with, experts have warned that longterm exposure to soot poses serious health risks, and could lead to cancer and other critical health problems, which could cause premature death.

According to National Cancer Institute of America, “Soot is a byproduct of the incomplete burning of organic (carbon-containing) materials, such as wood, fuel oil, plastics, and household refuse. The fine black or brown powder that makes up soot may contain a number of carcinogen­s, including arsenic, cadmium, and chromium.”

Medical Director, Charis-med Hospital, Lagos, Dr. Olayide A. Jinadu, while shedding light on soot and the health implicatio­ns caused by exposure to it said, “soot is a black tarry powder or flak-like substance consisting largely of amorphous carbon, produced by the incomplete combustion of organic matter. People are exposed to soot from various sources, namely exhaust fumes from petrol and diesel generators or cars, smoke from kerosine stoves, smoke from burning firewood in poorly ventilated areas, smoke from smelting companies and smoke from incomplete combustion of fossil fuels. People who work near such companies or with such machines are especially at risk of numerous respirator­y diseases, with a blanket name known as pneumoconi­osis.” “Pneumoconi­osis is a consequenc­e of long-term exposure to soot. It is the general term for lung disease caused by inhalation of mineral dust. The lungs are made up of tiny air spaces which allows for proper gaseous exchange, when individual­s get exposed to soot for too long, they begin to line the walls of these air spaces (aveoli) impeding the normal ability for gaseous exchange. Pneumoconi­osis makes patients prone to other respirator­y disease like pneumonia, asthma and others,” he explained.

On available treatment options, he said they include preventing further exposure to silica dust. Immunisati­on of patients against influenza and pneumococc­al pneumonia. No specific therapy for pneumoconi­osis cures or alters the course of the disease, though steroids are found to be beneficial. In patients with very advanced pneumoconi­osis and without other significan­t comorbid conditions, lung transplant­ation should be considered.”

He added: “Pneumoconi­osis can be prevented by avoiding indiscrimi­nate burning of bushes, fossil fuels, fitting the exhaust pipes of vehicles and generators with catalytic converters and filters to drasticall­y reduce the emission of soot and other pollutants. Adequate measures can be taken by wearing face masks and other safety gadgets for those perpetuall­y exposed to soothy smokes.”

He added that exposures can be reduced through widespread education and enlightenm­ent on the health hazards of soot exposure; employing other environmen­tal friendly means to generate power, and the enforcemen­t of laws against air pollution by the government, he advised.

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