Air quality measurements and meteorological measurements Annual report Background measurement network Umweltbundesamt 2011

The 2011 annual report is based on measurements by the offices of the state governments and the Federal Environment Agency and provides an overview of the air quality situation in Austria. In 2011, numerous exceedances of the limit and target values of the Immission Protection Act Air for particulate matter (PM10) and nitrogen dioxide (NO2) as well as ozone were recorded, also for sulphur dioxide, carbon monoxide, nitrogen oxides, benzo(a)pyrene and dust precipitation. The limit values and targets for PM2.5, lead, arsenic, cadmium and nickel in PM10 and benzene were met. Limit values for NO2 occurred mainly on busy roads, in the case of particulate matter in larger cities and, as a result of long-distance transport, in eastern Austria. Both pollutants had similar concentrations in 2011 as in 2010.本2011年度报告以奥地利各州政府办公室及联邦环境署（Federal Environment Agency）的监测数据为基础，全面概述了奥地利境内的空气质量现状。2011年，多项污染物的浓度突破了《大气环境防护法》（Immission Protection Act Air）规定的限值与目标值，涉及颗粒物（PM10）、二氧化氮（NO2）、臭氧，以及二氧化硫、一氧化碳、氮氧化物、苯并(a)芘与降尘。PM2.5、PM10中的铅、砷、镉、镍以及苯的限值与目标值均达标。二氧化氮（NO2）的浓度超标主要集中在交通繁忙路段；颗粒物超标则多出现于大型城市，同时受远距离大气传输影响，奥地利东部地区也存在此类超标情况。2011年上述两类污染物的浓度水平与2010年基本持平。