Transportation, construction and cooking at home are among factors causing pollution both indoors and outdoors in Hanoi. Hanoi residents worry about air pollution Hanoi’s air pollution ranked second in Southeast Asia The findings were revealed by environmental experts at an air pollution workshop hosted by the Green Innovation and Development Centre (GreenID) and Ha Noi Union of Science and Technology Associations (HUSTA) on Tuesday in Hanoi. Associate Professor Nghiem Trung Dung from Hanoi University of Science and Technology said about 40 per cent of fine particle (PM2.5 particles) emissions are from vehicles (motorcycles, cars and buses), according to research on the characterisation and source of fine particles in Hanoi. “Hanoi has a large number of motorbikes which emit a huge amount of emissions. But who controls the quality of motorbikes?” he said, adding that a lot of out-dated vehicles are used in the city, emitting polluted air. A good sign is that Hanoi has switched to compressed natural gas (CNG) buses on a number of routes, he said, highlighting the importance of fuel switching for the city’s bus system. According to research by the Construction University, fine particles and superfine particles are not only present with high concentrations outdoors but… Read full this story
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