Research Article

Assessment of Impacts Produced by Anthropogenic Sources in a Little City near an Important Industrial Area (Modugno, Southern Italy)

Table 5

Noncancer reference concentrations. cancer unit risks of the VOCs found during the monitoring campaign and their carcinogenic classifications in the IARC. The mean hazard ratio (HR) and the lifetime cancer risk (LCR) of each compound was calculated.

VOCsNoncancerCancer
Reference concentration ( g/m3)SourceGroup IARCUnit risk
( g/m3)−1
Source HRs LCRs

Benzene9.6ATSDR1 WHO
Heptane
Toluene5000IRIS3
Tetrachloroethylene271ATSDR2A OEHHA
Butyl acetate
Ethylbenzene1300ATSDR2B OEHHA
m-, p-Xylenes217ATSDR3
o-Xylene217ATSDR3
Styrene852ATSDR2B
a-Pinene
1,3,5-Trimethilbenzene6PPRTV
2-Ethyl-1-hexanol
Decane
1,4-Dichlorobenzene60ATSDR2B OEHHA
1,2,4-Trimethylbenzene7PPRTV
Limonene
1,2,3-Trimethylbenzene5PPRTV

IRIS: Integrated Risk Information System; ATSDR: Agency for Toxic Substances and Disease Registry; PPRTV: Provisional Peer Reviewed Toxicity Values of IRIS; OEHHA: Office of Environmental Health Hazard Assessment; WHO: World Health Organization.