河北廊坊重污染天气特征及气象条件影响研究

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摘 要:利用 2013—2016 年廊坊市环境监测数据以及同期相关气象资料,采用数理统计等方法,研究重污染天气
特征及影响的气象条件 . 结果发现:空气质量达标天数呈逐年上升趋势,而重污染天数逐年下降;重污染天气主要
出现在 1—3 月、10—12 月;重污染天气首要污染物只有 PM10、PM2.5、O3与 PM10,PM2.5 4 种情况 . 重污染天气日气象要 素特征明显:主导风向主要位于风玫瑰图的第一、第三、第四象限,风速基本上小于 1.6 m/s;相对湿度多在 50%以
3. Climate Center of Heilongjiang Province,Haerbin 150030,China; 4. Langfang Ecological Environment Bureau of Hebei Province,Langfang 065000,Hebei China)
第 38 卷 第 1 期 2020 年 1 月
文章编号:1004-3918(2020)01-0075-06
河南科学 HENAN SCIENCE
Vol.38 No.1 Jan. 2020
河北廊坊重污染天气特征及气象条件影响研究
周贺玲 1, 李雪瑶 2, 刘玉莲 3, 田晓飞 1, 闻 静 4
(1. 河北省廊坊市气象局,河北 廊坊 065000; 2. 江南大学 环境与土木工程学院,江苏 无锡 214122; 3. 黑龙江省气候中心,哈尔滨 150030; 4. 河北省廊坊市生态环境局,河北 廊坊 065000)
按照污染治理程度来看廊坊图1廊坊市气象观测站点分布fig1distributionofmeteorologicalobservationstationsinlangfang40n398n396n394n392n39n388n386n1162e1164e1168e117e1166e1172e100806040200三河大厂香河固安廊坊市永清霸州文安大城b年均重污染日地名a达标与重污染地名三河大厂香河固安廊坊市永清霸州文安大城重污染日数d250200150100500对比天数d2014年达标2015年达标2016年达标2014年重污染2015年重污染2016年重污染图220132016年廊坊空气质量年变化fig2annualchangesofairqualityinlangfangduring2013201676市区的重污染天数应该最低但平均污染天数次低应该与2013年数据列入统计有关
中图分类号:X 16;X 51
文献标识码:A
Characteristics of Heavy Pollution Weather and Influence Meteorological Conditions in Langfang , Hebei Province
ZHOU Heling1, LI Xueyao2, LIU Yulian3, TIAN Xiaofei1, WEN Jing4
上;年均能见度小于 10 km;1—3 月、10—12 月主要污染月逆温层厚度更厚,强度更强,逆温出现频率也更高;静稳天
气指数除了 4、5、7 月小于 10 以外,其余月均大于等于 10;3—6 月混合层高度在 1000 m 以上,其余月小于 1000 m;重
污染日霾、雾、轻雾、露、霜、ห้องสมุดไป่ตู้冰 6 种天气发生的频率较高 . 关键词:重污染;天气特征;气象条件;影响
Abstract:Based on environmental observation data and meteorological observation data in Langfang of Hebei Province during 2013-2016,characteristics and influence of meteorological factors for heavy pollution are studied by using mathematical statistics. The results show that the numbers of days reached the standard increase year by year,while the numbers of heavy pollution days decrease year by year. Days for heavy pollution mainly occur during JanuaryMarch and October- December. Primary pollutant for heavy pollution have PM10 and PM2.5 and O3 and PM10,PM2.5 . Characteristics of meteorological factors for heavily pollution weather is obvious. Dominant wind direction is mainly in the first,third and fourth quadrants of wind rose plot. Wind speed is mostly less than 1.6 m/s,and relative humidity is mostly above 50%. Annual visibility is less than 10 km. Inversion layer is generally thicker,and inversion intensity is stronger,and inversion frequency is higher during January-March and October-December. In addition to April, May and July,static weather index is more than 10 in other months. Mixed layer height is above 1000 meters during March-June,and it is less than 1000 meters in other months. Occurrence frequency of six weather phenomena for haze,fog,light fog,dew,frost and freeze is higher in heavy pollution days. Key words:heavy pollution;weather characteristics;meteorological conditions;influence
(1. Langfang Meteorological Bureau of Hebei Province,Langfang 065000,Hebei China; 2. School of Environment and Civil Engineering,Jiangnan University,Wuxi 214122,Jiangsu China;
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