“雾霾天气”英语怎么说
名词解释:雾霾,是雾和霾的组合词。雾霾常见于城市。中国不少地区将雾并入霾一起作为灾害性天气现象进行预警预报,统称为“雾霾天气”。雾霾是特定气候条件与人类活动相互作用的结果。你知道“雾霾天气”英语怎么说吗?
It's reported that monitoring data showed the Air Quality Index in most parts of Beijing reached 500, the maximum pollution level.Emergency response measures were adopted on Sunday in some areas to deal with the heavy pollution.Outdoor sports activities for primary and middle schools were ordered to be halted in extremely polluted areas.The hazy weather would continue until Wednesday in Beijing, local meteorologists said.
据报道,监测数据显示北京多数地区的空气质量指数都达到了500,即重度污染程度。上周六在部分地区已采取紧急预案来应对严重的空气污染。处于严重空气污染地区的中小学都按照要求,停止了户外活动。气象学家说,北京的雾霾天气将持续到星期三。
【讲解】
文中的hazy weather可解释为“雾霾天气” ,这种现象既有气象原因,也有污染排放原因。AQI(Air Quality Index,即为空气质量指数)是报告每日空气质量的参数。描述了空气清洁或者污染的程度,以及对健康的影响。2012年3月国家发布的新空气质量评价标准,污染物监测为6项:二氧化硫、二氧化氮、PM10、PM2.5、一氧化碳和臭氧,数据每小时更新一次。其中particulate matter代表“颗粒物”,科学家用PM2.5表示每立方米空气中这种颗粒的含量,这个值越高,就代表空气污染越严重。