东北区域：11月下半月，前期和后期冷空气活动频繁，扩散条件整体较好，区域大部空气质量优良，中 期气温回升，可能出现轻至中度污染过程。其中，16—21日，受连续的冷空气过程影响，偏北风为主， 区域大部扩散条件较好，预计空气质量以优良为主，期间18—19日为冷空气间歇期，辽宁和吉林局地可 能出现轻度污染。22—25日，气温回升，西南风为主，预计区域大部空气质量以良至轻度污染为主，辽 宁和吉林部分城市可能出现中度污染，区域北部空气质量优良。26—30日，受冷空气及后续过程影响， 扩散条件总体有利，预计区域大部空气质量以优良为主。在冷空气间歇期和回暖期间，若出现大范围秸 秆露天焚烧，污染等级可能加重1—2级。首要污染物为PM2.5或PM10。 央视网消息：据生态环境部消息，2025年11月15日，中国环境监测总站联合中央气象台、国家大气污染 防治攻关联合中心，东北、华南、西南、西北、长三角区域空气质量预测预报中心和北京市生态环境监 测中心，开展11月下半月（11月16日—30日）全国空气质量预报会商。 11月下半月，受多轮冷空气影响，全国空气质量整体以优良至轻度污染为主，其中华北中南部、华东中 北部、东北局地可能出现 ...

Core Viewpoint - The overall air quality in China during the first half of September 2023 is predominantly good, influenced by precipitation and cold air, with localized ozone pollution expected in some areas [1][2][3][4][5][6] Summary by Region Beijing-Tianjin-Hebei and Surrounding Areas - The air quality is mainly good, with slight pollution in some southern cities during specific periods due to temperature fluctuations and varying air flow [1][2] Yangtze River Delta - The air quality is generally good to lightly polluted, with localized areas experiencing light pollution due to high-pressure systems and precipitation [2] Fenwei Plain - The air quality remains predominantly good, with slight pollution in eastern areas, influenced by precipitation and temperature increases [3] Northeast Region - The air quality is mostly good, with potential light pollution in certain areas due to cold air and precipitation [4] South China - The air quality is primarily good, with some areas experiencing light pollution, particularly in central and northern regions [5] Southwest Region - The air quality is mainly good, with some cities experiencing light pollution due to temperature increases, while overall conditions are favorable [5] Northwest Region - The air quality is generally good, with localized light pollution and potential moderate pollution in southern Xinjiang due to dust storms [6]

守护蓝天白云的科技力量在南京再次升级。近日，由江苏省南京环境监测中心携手南京创蓝科技有 限公司打造的"南京市空气质量数值模式WRF-CMAQ系统"成功通过专家组验收。这一创新成果将大幅 提升环境空气预报的精度与准度，进一步增强南京空气质量预报能力。 据介绍，该系统运行以来，已输出200余次高质量预报。其24小时空气质量指数（AQI）预报准确 率高达94.4%，PM2.5与臭氧预报准确率分别达86.3%、79.2%，稳居同类监测系统前列。系统每月生 成的中长期预测与污染深度溯源报告已累计形成20余份，成为区域大气联防联控决策不可或缺的"智慧 大脑"。 新系统采用"气象—污染"双模型联动创新模式，覆盖全市的四层网格设计如精密锁扣层层嵌套，网 格分辨率从27公里逐步精细至1公里，实现对南京市域全方位、精细化覆盖。最内层1公里×1公里的网 格犹如"环境显微镜"，能够敏锐捕捉街道级别的污染变化特征，预报准确率较传统方法提升超30%。值 得一提的是，该系统还全面考量污染物的传输、扩散、化学反应等复杂过程，并在南京首次实现臭氧前 体物敏感性系数动态预测。 针对南京的地形气候特征，研发团队历经300余次反复实验，在关键环节实 ...

Core Viewpoint - The article discusses the air quality forecast for the second half of June, indicating that while most regions will have good air quality, the Beijing-Tianjin-Hebei region and the Fenwei Plain may experience light to moderate pollution due to high temperatures and dust storms [1]. Group 1 - The National Environmental Monitoring Station, in collaboration with various meteorological and environmental agencies, conducted a nationwide air quality forecast for the latter half of June [1]. - Overall, the atmospheric diffusion and wet removal conditions across the country are expected to be favorable, leading to predominantly good air quality in most areas [1]. - However, high temperatures may lead to light to moderate pollution in the central and southern parts of the Beijing-Tianjin-Hebei region and the Fenwei Plain [1]. Group 2 - Dust storm conditions may cause moderate or higher levels of pollution in parts of eastern and southern Xinjiang during certain periods [1].