Accordingly, the air quality of Colombo city is far behind the WHO recommended air quality guidelines, he adds.
According to research of the NBRO - there are instances where the air quality of Colombo, Kandy, Horana, Gampaha, Kurunegala and Kegalla cities have fallen below the WHO standards, he further says.
Especially in areas of Fort railway station, Peliyagoda, Thotalanga, Borella, Maradana, the concentration of Nitrogen Dioxide and Sulphur Dioxide is higher than the WHO standards, he notes, adding that air pollution is also high near the Good Shed bus stand and the New Bus Stand in Kandy.
Earlier, a PHD student of the Nottingham University - Eranga Madhushan Wimalasiri revealed that Sri Lanka has fallen victim to greenhouse emissions, although the country is not considered a major contributor to such emissions.
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