First International Conference on MOLDAVIAN RISKS – FROM ...
First International Conference on MOLDAVIAN RISKS – FROM ...
First International Conference on MOLDAVIAN RISKS – FROM ...
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<str<strong>on</strong>g>First</str<strong>on</strong>g> <str<strong>on</strong>g>Internati<strong>on</strong>al</str<strong>on</strong>g> <str<strong>on</strong>g>C<strong>on</strong>ference</str<strong>on</strong>g> <strong>on</strong> <strong>MOLDAVIAN</strong> <strong>RISKS</strong> - <strong>FROM</strong> GLOBAL TO LOCAL SCALE<br />
16-19 May 2012, Bacau, Romania<br />
RISK ASSESSMENT OF HEAVY METALS ON AIR<br />
POLLUTANTS IN BACAU CITY<br />
Andreea Cocarcea 1 , Ema Faciu 1 , Iuliana Lazar 2 , Gabriel Lazar 1<br />
1 “Vasile Alecsandri" University of Bacau, Department of Envir<strong>on</strong>mental Engineering and<br />
Mechanical Engineering<br />
2 “Vasile Alecsandri” University of Bacau, Department of Chemical and Food Engineering<br />
Corresp<strong>on</strong>ding author: Iuliana Lazar, ilazar@ub.ro<br />
Abstract: Heavy metals released from different sources in urban envir<strong>on</strong>ment get adsorbed<br />
by humans <strong>on</strong> respirable particulate matter less than 10 μm in size (PM10) and are<br />
important from public health point of view. The compositi<strong>on</strong> of PM10 varies, as they can<br />
absorb and transfer a multitude of pollutants: metals, organic compounds, material of<br />
biologic origin, i<strong>on</strong>s, reactive gases, and the particle carb<strong>on</strong> core. The c<strong>on</strong>centrati<strong>on</strong>s of<br />
PM10, Pb, Cd and Ni from the air of Bacau City are measured daily by the Regi<strong>on</strong>al<br />
Agency of Envir<strong>on</strong>mental Protecti<strong>on</strong> Bacau (ARPM Bacau) and published in their m<strong>on</strong>thly<br />
reports. The relati<strong>on</strong>s and correlati<strong>on</strong>s between c<strong>on</strong>centrati<strong>on</strong>s of PM10, Pb, Cd and Ni<br />
measured during year 2011 and number of patients <strong>on</strong> disease categories registered in 2011<br />
were analyzed using descriptive statistics and bivariate correlati<strong>on</strong>s. It was shown a similar<br />
trend in variati<strong>on</strong> during the period of all four trimesters for PM10 and Pb, and a maximum<br />
for all type of particles during the trimester IV. Another method for analyze the data used<br />
in this study was the multivariate statistics which shown a dependency of 53% between<br />
PM10 and Pb, of 52% between PM10 and Ni and of 38% between PM10 and Cd with a<br />
significant factor less than 0.05. The influence of these air pollutants <strong>on</strong> human health was<br />
analyzed using statistic data provided by IBM SPSS 20.0 software <strong>on</strong> number of registered<br />
ill pers<strong>on</strong>s by disease type and trimester during year 2011. The str<strong>on</strong>gest Bivariate<br />
Correlati<strong>on</strong>s were shown between urological diseases and PM10 (R=0.60, p