雾霾天气 英语介绍.ppt

文档介绍：Tian'anmen Square in the fog.
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A couple were taking pictures amid the haze.
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The Beijing National Stadium, or the Bird' Nest
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雾霾天气
Hazy Weather
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Popular Science大众科学
相对湿度
relative humidity
雾Fog
霾Haze
>90%
<80%
能见度
visibility
<1km
1km-10km
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Measurement 计量方式
AQJ (Air Quality Index)
空气质量指数

PM10
SO2
NO2
O3
CO
Updated Every hour
API (Air Pollution Index)
空气污染指数
SO2
NO2
PM10
Updated Every day
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What is PM ?
Particular Matter
PM10可吸入颗粒物
Burning of fossil fuels in vehicles机动车燃油
Power plants发电厂
Various industrial processes各类工业生产
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Air Quality IndexLevels of Health Concern
NumericalValue
Good
0-50
Moderate
51-100
Unhealthy for Sensitive Groups
101-150
Unhealthy
151-200
Very Unhealthy
201-300
Hazardous
> 300
Off the charts！爆表了！
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云里雾里
I am in a fog
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恐怖
Hang in there！
忍一下
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