Air pollution is one of the biggest environmental threats to human health, alongside climate change. Reading time: New WHO Global Air Quality Guidelines (AQGs) provide clear evidence of the damage air pollution inflicts on human health, at even lower concentrations than previously understood. The guidelines recommend new air quality levels to protect the health of […]
Prenatal exposure to household air pollution increased the risk for pneumonia in the first year of life, researchers reported in Chest. “Exposure to high levels of household air pollution due to cooking with biomass and other solid fuels remains common in the developing world,”Patrick L. Kinney, ScD,the Beverly A. Brown professor of urban health and sustainability in the […]
A commonly-used pesticide could be partially responsible for the global obesity epidemic, says a study led by McMaster University scientists. Researchers discovered that chlorpyrifos, which is banned for use on foods in Canada but widely sprayed on fruits and vegetables in many other parts of the world, slows down the burning of calories in the […]
By Ifenna Ilechukwu Nigeria has about 195,000km of road network, including about 60,000km of paved surfaces. The demand for road construction and highway expansion in Nigeria has led to an increase in the number of asphalt production plants in the country. Hot mix asphalt, used mainly for road construction, is produced by mixing aggregates — gravel, crushed stones, rock […]