生态环境部近日发布8月下半月全国空气质量预报会商结果，预测全国大部分地区空气质量将保持良好。预报显示，京津冀及周边区域、东北、华南和西南区域的大部分地区空气质量以优良为主，而华北中南部、辽宁局地可能出现轻度污染。长三角区域中北部和成都平原等个别城市则可能出现O3中度污染。此外，受沙尘天气影响，和田地区可能出现短时PM10重度及以上污染。
具体来看，京津冀及周边区域在8月下半月受冷空气和间歇性降水影响，空气质量以优良为主，但部分地区可能出现轻度污染。北京市空气质量以优良为主，受弱气压场控制和降水影响，扩散条件整体有利。长三角区域空气质量整体以良为主，中北部局地为轻度污染，个别城市可能出现中度污染，首要污染物为O3。汾渭平原则以良至轻度污染为主，空气质量受降水和气温变化影响。
生态环境部提醒，季节交替期气象条件变化较快，后期气象预报较不稳定，具体空气质量情况有待临近研判。公众应关注当地空气质量变化，采取相应措施保护健康。
英语如下：
News Title: “National Air Quality Forecast for the Second Half of August 2024 Issued”
Keywords: Air Quality, Forecast, Nationwide
News Content: The Ministry of Ecology and Environment has recently released the forecast meeting results for the national air quality in the second half of August. The prediction indicates that air quality across most regions of the country will remain good. The forecast shows that the majority of areas in the Beijing-Tianjin-Hebei region and its surrounding areas, Northeast China, South China, and Southwest China will have air quality that is mainly excellent. However, parts of North China, Southern Hebei, and isolated areas in Liaoning may experience light pollution. Air quality in the Yangtze River Delta and Chengdu Plain could see ozone-related moderate pollution in some cities. Additionally, due to sandstorm weather, the和田地区 (Tianshan region) may experience short-term PM10 pollution reaching severe levels or higher.
Specifically, the Beijing-Tianjin-Hebei region is expected to have air quality mainly in the excellent range during the second half of August, affected by cold fronts and intermittent rainfall, but some areas may experience light pollution. The air quality in Beijing is expected to be mainly excellent, controlled by a weak pressure field and influenced by rainfall, with overall favorable diffusion conditions. The air quality in the Yangtze River Delta is predominantly good, with isolated areas experiencing light pollution and some cities possibly facing moderate pollution, with ozone as the primary pollutant. The Fenwei Plain is expected to have air quality ranging from good to light pollution, affected by rainfall and temperature changes.
The Ministry of Ecology and Environment reminds the public that weather conditions change rapidly during the seasonal transition period, and the later weather forecast is less stable. The specific air quality situation will depend on closer-in assessments. The public is advised to pay attention to changes in local air quality and take appropriate measures to protect their health.
【来源】http://www.chinanews.com/gn/2024/08-15/10269455.shtml
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