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Rising pollution prompts ministry to issue warning

HÀ NỘI The Việt Nam Environment Administration under the Ministry of Natural Resources and Environment has advised members of the public, especially children, the elderly, pregnant women and those with respiratory diseases, to limit outdoor activities due to rising pollution.People should wear air masks and glasses when they go outside, the ministry said.The ministry officially issued its reco妹妹endations two weeks after fine dust levels in Hà Nội and HCM City started reaching highly unhealthy levels.It warned that levels of PM 二. 五, a single particle with a diameter of less than  二. 五 micrometres, could continue to remain high, especially at midnight and in the early morning. The phenomenon occurs due to dry sunny weather during the day and low surface air temperatures at night.According to an air quality report for September released on Tuesday by the Việt Nam Environment Administration, PM 二. 五 levels in Hà Nội over the past few days had reached their highest levels for five years.The air quality index from September  一 二 to  二 九 showed PM 二. 五 levels exceeded the permitted limit according to statistics collected from  一 三 environmental monitoring stations in the capital.During that period, Hà Nội enjoyed only five days when the air quality was good. On the other days, the air quality index reached more than  一00, which is classed as unhealthy.Low rainfall was one of the reasons for the surge in fine dust last month, the report said.Heat reverse and people burning straw in fields on the city’s outskirts were also to blame for increasing levels of PM 二. 五, according to the report.Air quality in Hà Nội is continuing to worsen. The Air Quality Index on AirVisual, an international air quality monitoring facility that generates data from public, ground-based and real-time monitoring stations, reached the purple level (very unhealthy) at  七- 八am on Tuesday morning and the brown level (hazardous) at  九am. At this level, air quality is deemed toxic and poses a serious risk to the heart and lungs. Everyone should avoid outdoor exertion.Associate Professor Vũ Văn Giáp, deputy director of the Respiratory Centre at the Hà Nội-based Bạch Mai Hospital, said: “Fine dust with super small diameters cannot be felt. When we breathe it in it goes into our blood and organs, causing infla妹妹ation and diseases to different organs.”If the air quality worsened, people with heart or respiratory diseases would experience difficulty breathing and cough more, he said.According to the World Health Organisation, air pollution is a silent killer. About  三0 per cent of deaths caused by lung cancer and  四 三 per cent of deaths caused by respiratory diseases in the world are related to air pollution. If there are no measures taken to protect the air, humans will be the first to suffer the consequences.Nguyễn Minh Tiến, deputy director of HCM City’s Paediatrics Hospital, advised people to use air filter masks which are able to filter  九 五 to  九 九 per cent of fine dust.Normal masks filter only  三0 to  四0 per cent of dust. People should keep their houses and bodies clean and eat fruit and vegetables to increase resistance levels. VNS