抚顺大气悬浮颗粒物、PAHs和NPAHs污染调查

目的　了解抚顺大气悬浮颗粒污染物,特别是可吸入性颗粒物(PM10 )、细颗粒物(PM2 5)和超细颗粒物(PM1 0 )、多环芳烃(PAHs)和硝基多环芳烃(NPAHs)的浓度、分布及季节变化情况。方法　选择抚顺市内距同一污染源下风侧不同距离的3所小学为监测点,于2 0 0 2年7月～2 0 0 3年4月每季监测2周,每次4 8h连续采样,重量法测定大气悬浮颗粒物浓度、粒径分布和季节变化情况;用高压液相色谱/荧光检测仪、化学发光检测仪检测PAHs、NPAHs的种类与含量。结果　3监测点的大气悬浮颗粒物污染情况相近;TSP在冬、春两季超过国家环境空气质量二级标准1. 2 8～1 .5 4倍;PM10 全年各季节、每次采样测量均超标1. 0 7～2 . 2 2倍;PM2 . 5超美国EPA细颗粒物空气质量标准3. 84～7 76倍,甚至每次采样测量值几乎都超美国标准的每日最高允许值。冬季大气悬浮颗粒物污染加重。在大气悬浮颗粒物中检出9种PAHs、12种NPAHs ,冬季浓度高于夏季,以苯并(b)荧蒽(BbF)、艹屈(Chr)和荧蒽(Flu)等4苯环的PAHs浓度较高;NPAHs在12月采暖期以2 -硝基荧蒽(2NF)为高,7月非采暖期以2 -硝基芘(2NP)为高,是其它NPAHs的几十到几千倍。PAHs、NPAHs在<2 . 1μm粒径颗粒物中的重量百分比为6 7. 2 3% ,79 .73%。结论　抚顺大气悬浮颗粒物、多环芳烃和硝基多环     

2006-2010年天津市河北区大气污染调查

为了解天津市河北区大气质量变化规律,依据GB 3095-1996《环境空气质量标准》于2006-2010年对河北区大气中可吸入颗粒物(PM10)、二氧化硫(SO2)、二氧化氮(NO2)进行监测并依据二级标准评价,采样方法是24h自动连续采样,分析方法是紫外荧光法(S02)、化学发光法(N02)和振荡天平法(PM10).结果显示2006-2010年SO2年均值分别为0.058、0.053、0.058、0.042、0.050 mg/m3,达到二级标准限值(0.06 mg/m3).二氧化硫的季节性污染状况趋势一致,各年采暖期(11月一次年3月)浓度高于非采暖期.2006-2010年NO2年均值分别为0.048、0.033、0.029、0.052、0.032 mg/m3,均达二级标准(0.08 mg/m3).2006-2008年呈逐年下降趋势,采暖期均高于非采暖期.2006-2010年可吸入颗粒物年均值分别为0.116、0.084、0.085、0.097、0.087 mg/m3,2007-2010年均达二级标准(0.10 mg/m3),2006年超过二级标准,2006、2007年采暖期高于非采暖期,2008、2010年非采暖期高于采暖期,可能与春、夏季风沙、施工扬尘有关.结果提示该区大气主要污染物为SO2(污染负荷系数:0.29～0.48)和PM10(污染负荷系数:0.30～0.42).     

住宅室内空气颗粒物污染状况及其与大气浓度关系的初探

目的了解当前住宅室内空气PM2.5和PM10的污染水平及其与室外大气浓度的关系。方法选择10户市区常住家庭,采用单孔多段冲击式颗粒物采样仪进行室内外空气PM2.5、PM10浓度的同时监测。结果非采暖期室内空气PM2.5和PM10的浓度范围分别为27.0～272.9μgm3和42.9～309.6μgm3;采暖期分别为20.7～251.4μgm3和34.0～283.9μgm3。PM2.5与PM10浓度之间呈良好的直线相关关系。室内外颗粒物浓度的相关关系在非采暖期和采暖期有所不同。结论住宅室内空气颗粒物污染比较严重,今后应进一步研究室内颗粒物的污染规律,探讨颗粒物对人群健康的影响。     

2002-2004年河南省大气可吸入颗粒物污染现状及变化趋势分析

目的通过对河南省2002年至2004年18个省辖市区可吸入颗粒物(PM10)监测资料的分析,描述河南省大气中可吸入颗粒物污染浓度水平和地域分布情况,对其变化趋势进行初步分析,进而探讨可能的原因,并提出相应策略。方法对2002年至2004年河南省18个省辖市区,按照城市功能分区,采用网格式布点普查,优化出有代表性的位点作为采样点。其中PM10设75个采样点。对监测资料,用单因素方差分析q检验,比较各组均值之间差异是否有统计学意义。结果按年均浓度评价:各年年均浓度均超过了国家二级标准,空气质量为三级。自2002年至2004年大气污染状况现明显改善,共降低了21.6个百分点;年度内变化情况:2003年、2004年,全省大气可吸入颗粒物冬季污染最严重,春、秋季次之,夏季最轻,月均值变化趋势接近"U"型;全省PM10污染地区分布情况:劣三级城市主要分布在河南省北部,二级城市主要分布在河南省南部和东部地区,大部分城市为三级集中在河南省中部。结论全省大气中颗粒物污染状况出现逐年减轻的良好势头,特别值得注意的是,省内各产煤区由于近年来加强了对空气中颗粒物污染的有效治理,污染状况明显好转,但是就总体情况来看,大气中颗粒物污染形势仍然十分的严峻。     

大气污染与儿科门急诊呼吸系统疾病相关性研究

目的探讨庆阳市大气污染浓度水平与儿科门急诊呼吸系统疾病日就诊人次的相关性。方法收集2016年11月1日—2017年10月30日庆阳市空气质量监测数据及同期庆阳市人民医院儿科门急诊呼吸系统疾病就诊病例,比较采暖期(2016年11月—2017年3月)和非采暖期(2017年4月—2017年10月)儿科门急诊呼吸系统疾病日就诊人次数和大气污染浓度水平,采用Spearman秩相关和逐步多元线性回归法分析采暖期和非采暖期大气污染物对儿童呼吸系统疾病日就诊人次的影响。结果采暖期儿科呼吸系统疾病日就诊人次数及大气污染各项指标均高于非采暖期(P0. 05)。全年PM2. 5、PM10日均浓度低于《环境空气质量标准》(GB3095-2012)二级标准限值,SO2、NO2日均浓度低于《环境空气质量标准》(GB 3095-2012)一级标准限值,统计学分析显示儿童呼吸系统疾病与PM2. 5、PM10、SO2、NO2和O3日均浓度具有相关性(P0. 05),但其相关性水平在采暖期与非采暖期分布不同。结论庆阳市大气污染物各指标浓度低于《环境空气质量标准》(GB 3095-2012)二级标准限值,采暖期大气污染物浓度高于非采暖期,且采暖期儿科呼吸系统疾病与大气污染物浓度水平相关系数高于非采暖期,提示大气污染物浓度升高会增加儿童罹患呼吸系统疾病的危险性。     

太原市大气多环芳烃水平及孕妇体内多环芳烃负荷关系研究

目的 了解太原市大气多环芳烃污染水平及孕妇体内多环芳烃(PAHs)负荷水平,并对两者之间的关系进行探讨.方法于2007年8月至2008年2月,在太原市某社区进行环境空气颗粒物定点采样,测定PM2.5水平及其吸附的9种PAHs水平.同时,随机调查了155名孕妇,收集基本信息,采集产前尿样,测定尿1-羟基芘水平.结果 采暖期间PM2.5浓度(0.299 mg/m3,2007年11至12月)高于非采暖期(0.142 mg/m3,2007年9至10月).大气颗粒物中含有一定量PAHs,其中B(a)P水平为0.030 3 μg/m3,是国家居民区大气中B(a)P的浓度标准(0.01 μg/m3)的3倍.采暖期分娩的孕妇尿中1-OHPvy(0.97 μmol/mol Cr)高于非采暖期分娩的孕妇(0.71 μmol/mol Cr).尿1-OHPy 水平与同期空气中PM2.5的变化趋势一致.结论 太原市大气颗粒物污染严重,并含有较高水平的PAHs;孕期妇女体内具有一定水平的PAHs负荷,并同大气污染具有一定的相关性,提示进行污染控制及行为干预的必要性.     

西安市地铁环境中大气颗粒物污染现状调查

为了解西安市地铁环境中大气颗粒物污染水平,采用气溶胶光谱仪对该市地铁二号线内9个站点的大气颗粒物浓度进行测定.结果显示,站台、车厢和站厅内PM10平均浓度范围分别为55～177、47～123和60～274 μg/m3; PM2.5平均浓度范围分别为30～93、35～87和35 ～97 μg/m3; PM 1.0平均浓度范围分别为25～72、29～70和26～72 μg/m3;CO2平均浓度范围分别为0.039％～0.058％,0.053 ％～0.107％和0.040％～0.053％; PM10、CO2浓度均低于GB 50157-2003《地铁设计规范》限值,个别站点PM2.5不同程度超过GB 3095-2012《环境空气质量标准》二级标准.提示应加强地铁环境PM2.5的监测,尤其应降低车厢内PM2.5浓度.     

2013年冬春季济南市某办公场所室内空气颗粒物质量浓度分析

目的了解冬春季节室内空气颗粒污染物污染水平。方法于2013年1—5月工作日期间在济南市某办公场所采用LD-5C(B)微电脑激光粉尘仪对室内空气颗粒物PM10、PM2.5进行监测。结果济南市冬春季节室内颗粒物PM2.5、PM10平均质量浓度分别为0.082、0.115 mg/m3;采暖期室内PM2.5、PM10的质量浓度(0.152、、0.191 mg/m3)高于非采暖期(0.050、、0.079 mg/m3),差异有统计学意义(P0.05);采暖期室内PM2.5/PM10为0.807,非采暖期PM2.5/PM10为0.598,差异有统计学意义(Z=4.917,P=0.001);室内外PM2.5相关系数r=0.878,P=0.001;室内外PM10相关系数r=0.701,P=0.001。结论济南市冬春季节室内颗粒物污染较重,室内外颗粒物质量浓度有较好的相关性,采暖对室内细颗粒物浓度影响较大。     

银川市大气PM2.5和PM10中多环芳烃的污染特征

目的分析2015-2016年银川市大气PM2.5和PM10中多环芳烃(PAHs)的污染特征。方法采用大气颗粒物中流量采样器对大气中的PM2.5、PM10颗粒物样品进行采集,超声萃取,GC-MS分析测定。结果 2015-2016年银川市大气颗粒物PM2.5和PM10中PAHs浓度变化范围分别为32.86~250.89 ng/m~3、23.93~30.73 ng/m~3,PAHs质量浓度均为冬季最高,夏季最低,主要分布于细颗粒物中;2015年四季PM2.5中苯并[a]芘(BaP)浓度的大小顺序为:冬季秋季夏季春季,其中冬季PM2.5中苯并[a]芘超过其规定浓度限值的2.8倍。2016年四季PM2.5中苯并[a]芘浓度的大小顺序为冬季秋季春季夏季,其中冬季PM2.5中苯并[a]芘超过其规定浓度限值的8.38倍;2015年冬季PM2.5中多环芳烃的污染主要以交通排放低碳环为主,2016年冬季以煤炭排放为主的高碳环和交通为主的低碳环都有所增加。2015-2016年银川市大气中冬季PM2.5中苯并[a]芘等效致癌浓度(BaPE)分别为15.24 ng/m~3和30.84 ng/m~3,分别为苯并[a]芘的2.17倍和1.47倍。结论 PAHs在四季的分布具有显著的季节变化特点,尤其是冬季环境中PAHs加重了对人体的危害,银川地区冬季又属于供暖高峰期,在减少煤炭量的使用的同时、适当控制银川市机动车辆的数量。     

采暖期大气中不同粒径颗粒物污染及其重金属分布状况

目的了解采暖期不同粒径大气颗粒物污染状况及其重金属分布状态。方法于2003年12月-2004年1月在天津市某市中心区利用大气自动采样仪全天采集大气中颗粒物样品,连续采样32d。用原子吸收光谱法、原子荧光光谱法和等离子发射光谱法,定性检测颗粒物中载带的重金属,并对其中9种重金属进行定量测定。结果在采暖期内TSP、IP、PM25的日均值超标率分别为54．55％,57．58％,84．85％。颗粒中载带的部分重金属含量较高,如Cd、Pb和Ni都达到100mg／m^3以上。结论采暖期大气颗粒物污染严重;PM25细颗粒物对重金属的载带能力较TSP和IP更强,对人体健康的危害更大。     

Seasonal and annual variations in air concentrations of Pb, Cd and PAHs in Cairo, Egypt

A study is presented concerning the degree and extent of air pollution by cadmium, lead and polycyclic aromatic hydrocarbons (PAHs) in atmospheric particulates of an urban area (El-Abasya) in Cairo, Egypt. The average yearly and seasonal concentrations are presented. The correlation coefficients between metals, and between metals and suspended PAHs are also reported. Statistical analysis showed seasonal and annual variations. Concentrations of PAHs, Pb and Cd were higher in winter than those measured at other times in the study area. The concentration of lead decreased by 40% from 3.36 microg(-3) in 1994 to 2.4 microg m(-3) in 1997 in consequence of the reduction of the Pb concentration in leaded gasoline fuel. The average cadmium concentrations showed significant decrease in 1997. The sum of the concentrations of PAHs was higher during the winter season 1997 (14.79 ng m(-3)) than in summer (7.53 ng m(-3)) and a highly significant difference was observed between the two seasons. In addition, the ratio of benzo(a)pyrene [B(a)P] to Pb was higher in winter than in summer, suggesting the contribution of a non-vehicular source of lead. The levels of lead observed are higher than those recorded in various other parts of the world.     

Seasonal patterns of outdoor PM infiltration into indoor environments: review and meta-analysis of available studies from different climatological zones in Europe

Epidemiologists have observed higher risks for exposure to ambient particulate matter (PM) in the summer than in other seasons. This increased risk may be partly due to seasonal behaviour and higher exposures to indoor PM in the summer in relation to outdoor pollutant levels during winter when windows are kept closed and less time is spent outdoors. In this report, we analyse data from six European studies, based on three different methods of estimating outdoor to indoor infiltration factors, with the aim of characterizing the geographical and seasonal patterns of PM infiltration. The highest infiltration levels were observed for the summer in both a European combined dataset consisting of 382 observations of the average PM_2.5 infiltration factor for 1 day to 2weeks in regional data sets for Northern, Central and Southern Europe as well as for all ten cities individually. Th lowest values were observed for the winter, with spring and autumn displaying intermediate values. In all datasets and cities, the variability between residences and days within each season was much higher than the seasonal trend. PM₁₀ data were available from two studies, revealing that the PM₁₀ infiltration factors ranged from 70 to 92% of the corresponding PM_2.5 values. Some differences between the studies may be associated with the study designs and applied methods of determining the infiltration factor. The ratio of summer to winter PM_2.5 infiltration ranged from 1.3 in Rome to 2.3 in Helsinki, and the corresponding regional ratio ranged from 1.5 in Central Europe to 1.8 in Northern and Southern Europe. It is suggested that similar differences can be expected in epidemiological concentration–response relationships due to the modification in seasonal exposure associated with buildings and time spent indoors.     

大气PM_(2.5)中重金属研究进展

近年来大气PM_(2.5)污染及其危害受到全球关注,我国污染现状尤其严重。作为重要的大气污染物成分,PM_(2.5)富集的重金属对生态环境和人体健康有较大威胁。该文分析总结了我国大气PM_(2.5)中重金属的研究现状,包括污染水平、时空分布特征、来源解析、化学形态、生物有效性和毒理健康效应等方面,提出了现阶段研究的不足,并对今后大气颗粒物污染及其成分研究进行展望,以利于环境空气质量的合理评价及其标准完善,为大气污染防治决策提供科学依据。     

Long-term ambient air pollution levels in four Chinese cities: inter-city and intra-city concentration gradients for epidemiological studies.

The field data collection of an air pollution epidemiologic study was carried out from 1993 to 1996 in four Chinese cities of Lanzhou, Chongqing, Wuhan, and Guangzhou. In each city, an urban district and a suburban district were selected. Ambient concentrations of total suspended particles (TSP), size-fractionated particulate matter including PM2.5, PM2.5-10, and PM10, sulfur dioxide (SO2), and oxides of nitrogen (NOx) were measured in these districts. The results indicate the presence of wide inter-city and intra-city gradients in long-term ambient levels of these measured pollutants. Across the eight districts, the 1993-1996 4-year means of TSP, SO2, and NOx ranged from 198 to 659 microg/m3, from 14.6 to 331 microg/m3, and from 31.5 to 239 microg/m3, respectively, and the 1995-1996 2-year means of PM2.5, PM2.5-10, and PM10 ranged from 51.5 to 142 microg/m3, from 29.2 to 107 microg/m3, and from 80.7 to 232 microg/m3, respectively. These pollution ranges substantially extended the upper end of the pollution ranges of previous air pollution epidemiologic studies conducted in North America and Europe. In each district, significant correlations among the measured pollutants were observed for daily concentrations. However, the gradient patterns in long-term means of different pollutants were different across the eight districts. (e.g., PM2.5-10 and TSP were highest in the Lanzhou urban district, PM2.5 and PM10 were highest in the Guangzhou urban district, SO2 was highest in the Chongqing urban district, and NOx was highest in the Guangzhou urban district). In general, seasonal variations were present in the ambient concentrations with high levels often occurring in winter months. The eight districts may be classified into four district clusters based on integrated levels of all measured pollutants. These features of the ambient air pollution have important implications for epidemiological studies and may provide unique opportunities to study exposure-effects relationships in the four Chinese cities.     

Seasonal analyses of air pollution and mortality in 100 US cities

Time series models relating short-term changes in air pollution levels to daily mortality counts typically assume that the effects of air pollution on the log relative rate of mortality do not vary with time. However, these short-term effects might plausibly vary by season. Changes in the sources of air pollution and meteorology can result in changes in characteristics of the air pollution mixture across seasons. The authors developed Bayesian semiparametric hierarchical models for estimating time-varying effects of pollution on mortality in multisite time series studies. The methods were applied to the database of the National Morbidity and Mortality Air Pollution Study, which includes data for 100 US cities, for the period 1987-2000. At the national level, a 10-microg/m(3) increase in particulate matter less than 10 microm in aerodynamic diameter at a 1-day lag was associated with 0.15% (95% posterior interval (PI): -0.08, 0.39), 0.14% (95% PI: -0.14, 0.42), 0.36% (95% PI: 0.11, 0.61), and 0.14% (95% PI: -0.06, 0.34) increases in mortality for winter, spring, summer, and fall, respectively. An analysis by geographic region found a strong seasonal pattern in the Northeast (with a peak in summer) and little seasonal variation in the southern regions of the country. These results provide useful information for understanding particle toxicity and guiding future analyses of particle constituent data.     

银川市大气PM2.5中12种元素污染特征及变化趋势分析

目的 分析银川市大气PM2.5中12种元素(锑、铝、砷、铍、镉、铬、汞、铅、锰、镍、硒、铊)的污染特征及变化趋势,为大气污染进一步治理提供科学依据。方法 2015年1月至2018年2月每月定期在银川市采集大气PM2.5,采用称重法和电感耦合等离子质谱法(ICP-MS)分别测定大气PM2.5及其元素的质量浓度,分析其污染特征及污染趋势。结果 2017年银川市大气PM2.5年均质量浓度较2015年、2016年明显降低,P＜0.05;2015年、2016年呈现明显的季节变化,冬春高、夏秋低,2017年四季变化趋势不明显。银川市大气PM2.5中金属元素Al、Pb、Mn含量较高,其它元素含量相对较低;从2015年到2017年元素Al、Pb、Mn、Sb、Be、Cd、Ni、Tl的质量浓度呈递降趋势。结论 从2015年至2017年,银川市空气质量明显好转,但空气污染的治理仍需要加强。     

Particulate suspended matters and cases of respiratory disease in Rio de Janeiro city (Brazil)

This paper investigates the existence of a possible relationship between suspended particulate matters levels and cases of respiratory diseases from a random and systematic sample of medical and air pollution records in the metropolitan area of Rio de Janeiro. Records of emergency cases of the year 1991 (months of January, June and July) were collected at Miguel Couto Hospitals and suspended particulate matter (1980-1995) at FEEMA (Rio de Janeiro Environmental Agency). The results revealed that the diseases of the respiratory system of those patients who seek the hospital's emergency care are more frequent during the wintertime. Their number increases markedly during winter months of June and July when compared with the summer's (January) number of cases. The analysis of the historical series (1980-1995) of atmospheric pollution measured at Bonsucesso monitoring station showed that the monthly figures (measured by the number of times that the value exceed the national standard, maximum daily concentration of 240 micro g (-3), are higher in wintertime (June, July and August). During this same period the level of pollution by atmospheric particulate matter in Rio de Janeiro metropolitan area measured by the annual geometric averages showed results well above the national standard (80 micro g(-3). This unfavorable situation, together with the fast growing number of new cars circulating in the city and the absence of a clear air pollution control and management plan, may contribute to an increase of the incidence and seriousness of respiratory diseases during subsequent winter months.     

大气颗粒物与冠心病患者死亡率之间关系的Meta分析

目的为进一步了解大气污染(PM2.5、PM10)与冠心病患者死亡率的关系,采用M eta分析,依靠对以往相关文献的定量综合,从而得出比较可靠的结论,为定量评价大气颗粒物对冠心病患者危害及制定相关环境决策提供依据。方法应用Meta分析对12个有关大气颗粒物与冠心病患者死亡关系的定量研究进行综合分析。采用大气颗粒物每上升10对μg/m3,冠心病患者死亡率增加的百分比β为效应值,通过异质性检验,利用固定或随机模型效应进行效应值合并,并且对结果进行敏感分析。结果 PM 10每上升10μg/m3,人群冠心病死亡平均增加0.80%(95%CI:0.60%～1.10%);PM2.5每上升10μg/m3,人群冠心病死亡平均增加2.10%(95%CI:1.20%～3.10%);PM2.5每上升10μg/m3,女性冠心病死亡平均增加18.50%(95%CI:5.90%～31.10%),文献均采用的是固定效应模型。结论 PM2.5、PM10与冠心病患者死亡率存在正相关,但其机制仍需进一步研究。     

上海宝山地区大气PM_（2.5）污染特征分析

[目的]了解上海市宝山地区大气PM2.5污染状况,同时进行一些相关因素的分析。[方法]PM2.5采用滤膜称重法进行监测,每次连续采样24 h,计算日平均质量浓度,所得数据按季节进行特征分析,同时,利用SPSS 11.5统计软件,将PM2.5质量浓度对数转换后与气象因素（风速、相对湿度、温度）进行相关性分析。[结果]①上海宝山地区大气PM2.5质量浓度为0.003～0.260 mg/m3,平均0.052 mg/m3。且冬季PM2.5质量浓度高于夏季、春季和秋季,变化规律依次为冬季〉夏季〉春季〉秋季。②风速与春、夏、秋、冬季的PM2.5质量浓度相关系数分别为：-0.515（P〈0.05）、-0.077（P〉0.05）、-0.112（P〉0.05）和-0.497（P〈0.05）;相对湿度与PM2.5质量浓度的相关系数为0.293（P〈0.05）;温度与PM2.5质量浓度的相关系数为-0.102（P〉0.05）。[结论]①上海宝山地区PM2.5污染较为严重,按美国EPA质量标准0.065 mg/m3计算,超标率已达到37.9%。②风速与春季和冬季的PM2.5质量浓度之间有负相关;相对湿度与PM2.5质量浓度之间有正相关。建议加大对环境污染源的治理力度,可根据污染的季节特征及其影响因素,重点加强污染严重时段的监督和控制,同时根据不同的气象条件加以分时治理。     

Air pollution survey in Kitakyushu district

Airborne particulate samples were collected on a glass fiber filter or quartz filter using Hi-volume air sampler from November, 1980 through February, 1983 at a west part of Yahata district, Japan. The concentrations of airborne particulates, polynuclear aromatic hydrocarbons (PAH), heavy metals and dustfall were determined, and mutagenic activities of tarry materials obtained from suspended particulates were also measured. The following results were obtained. (1) The airborne particulate contents were 22.1 - 188 mg/1000 m3 (mean : 74.6 mg/1000 m3), and the values were high in spring and low in summer. (2) PAH contents in airborne particulates were in the following order: benzo(ghi)perylene greater than benzo(a)pyrene greater than benz(a)anthracene greater than chrysene greater than benzo(k)fluoranthene greater than pyrene greater than perylene. PAH contents were higher in winter that in summer. The benzo(a)pyrene contents were 1.97 micrograms/1000 m3 in 1981 and 1.92 micrograms/1000 m3 in 1982. (3) Heavy metals content was about 2.1 - 3.6 higher in winter in comparison with that in summer time. (4) Mutagenic activity showed 90 - 11900 revertants/1000 m3 for TA 98 strain with S-9 mix and 50 - 7190 revertants/1000 m3 for TA 98 strain without S-9 mix. Mutagenic activities for TA 98 with S-9 mix were higher than those for TA 98 without S-9 mix. (5) As a result of the analysis of airborne particulate samples, a significant correlation was observed between mutagenic activities and the concentrations of PAH and heavy metals. These results indicated that the mutagenic survey may be useful as an index for air pollution study.