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Overcast with some showers
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TODAY will be mostly overcast with some showers and a high of 22 degrees Celsius and a low of 15, according to the Shanghai Meteorological Bureau. Good air quality is expected.
Some parts of the city will encounter thunderstorms tomorrow, and the temperature will range between 16 and 22 degrees.
It will be cloudy on Sunday morning and showers may hit the city in the afternoon. The mercury will be between 15 and 21 degrees.
Meanwhile, Shanghai was hit by heavy air pollution yesterday with PM2.5 being the major pollutant, according to Shanghai Environmental Monitoring Center.
The air-quality index (AQI) began to rise early in the morning, surpassing the 200 threshold for heavy pollution by 8am. The figure rose to 236 over the next two hours. The density of PM2.5 in Huangpu and Hongkou districts was reported to be over 200 micrograms per cubic meter, eight times the World Health Organization’s recommended standard of 25 micrograms per cubic meter in a 24-hour period.
According to the environmental center, it was caused by poor diffusion conditions.
“The humidity, along with low wind, created poor diffusion conditions, meaning the pollutants discharged by local sources could not be dispersed easily,” Wang Qian, chief forecaster at the center, told Shanghai Daily.
“The weather in spring changes often, and short-term pollution is normal for this season in Shanghai.”
The AQI dropped back to 192 — moderately polluted — at 1pm.
Wang said conditions will improve today, thanks to increased wind and some rain. The AQI is forecast to be between 40 and 65 today.
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