PM2.5 FORECASTING IN THE MOST POLLUTED CITY IN SOUTH AMERICA

P. Perez, C. Menares, Camilo Ramirez
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引用次数: 2

Abstract

According to a recent study of WHO, Coyhaique, a small city in the south of Chile is the most polluted city in South America. With 70,000 habitants, the reasons for the high PM2.5 concentrations in the city area during fall and winter are: topographic situation, stable atmospheric conditions and intense use of wood stoves for heating. During 2016, the 24h moving average exceeded 170 micrograms per cubic meter for 63 days. A neural network model that uses previous values of PM2.5, meteorological information and previous concentrations of NO2 and CO as input, which is trained with 2014 and 2015 data, is able to forecast 91% of these exceedances. This forecasting is very useful in order to alert the population and to motivate the authorities to take actions to control the emissions.
南美污染最严重城市的Pm2.5预报
根据世界卫生组织最近的一项研究,智利南部的一个小城市科伊海克是南美洲污染最严重的城市。市区有7万人口,秋冬季节PM2.5浓度高的原因有:地形条件、大气条件稳定、柴炉取暖使用密集。2016年,连续63天24小时移动平均值超过170微克/立方米。使用2014年和2015年数据训练的神经网络模型使用PM2.5、气象信息和NO2和CO的浓度作为输入,能够预测91%的超标情况。这种预测非常有用,可以提醒人们,并促使当局采取行动控制排放。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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