TY - JOUR
T1 - Method development for determining the malodor source and pollution in industrial park
AU - Mao, I. Fang
AU - Chen, Mei Ru
AU - Wang, Lee
AU - Chen, Mei Lien
AU - Lai, Sin Chen
AU - Tsai, Chung Jung
N1 - Funding Information:
The authors would like to thank the National Science Council of Taiwan for financially supporting this research under Contract no. NSC 99-2218-E-273-001 .
PY - 2012/10/15
Y1 - 2012/10/15
N2 - Malodor pollution emitted from industrial park has become an important environmental issue. However, the difficulty in investigating malodor pollution is in determining the malodor source. The objective of this study was to develop a model for determining the malodor source and pollution in industrial park, via multiple time and site measurements of odor intensity and air pollutants, together with wind direction in different seasons, and the critical environmental factors could be also identified by correlating the odor intensities with meteorological conditions and the concentrations of air pollutants. A high-malodor-polluted industrial park involving metal and petrochemistry processing industries was selected as the study subject, and sampling was performed close to residential districts. Nine sites were selected as sampling points by a chessboard design, with each site measured for 5days in fall and spring, respectively. Odor intensity (ratings 0-5) and environmental factors, including meteorological condition, PM10, PM2.5, total volatile organic compounds (TVOCs), ammonia and reduced sulfides, were evaluated six times daily. The results indicated that the incidences of odor ratings 1-5 were 71.9% and 81.0% in two seasons in the sampling area, and an open ditch for collecting industrial wastewater for feeding to the wastewater treatment plant was identified as the main odor source. Multiple regression analysis showed that the odor rating significantly correlated with TVOC concentration and wind speed (P<0.05); odor intensity increased by 0.001 units on the rating scale for each 1ppb increase in TVOCs, and decreased by 0.154 units for each 1m/s increase in wind speed. This study developed a method to explore malodor pollution in industrial park, providing a novel thinking to understand and resolve malodor problems.
AB - Malodor pollution emitted from industrial park has become an important environmental issue. However, the difficulty in investigating malodor pollution is in determining the malodor source. The objective of this study was to develop a model for determining the malodor source and pollution in industrial park, via multiple time and site measurements of odor intensity and air pollutants, together with wind direction in different seasons, and the critical environmental factors could be also identified by correlating the odor intensities with meteorological conditions and the concentrations of air pollutants. A high-malodor-polluted industrial park involving metal and petrochemistry processing industries was selected as the study subject, and sampling was performed close to residential districts. Nine sites were selected as sampling points by a chessboard design, with each site measured for 5days in fall and spring, respectively. Odor intensity (ratings 0-5) and environmental factors, including meteorological condition, PM10, PM2.5, total volatile organic compounds (TVOCs), ammonia and reduced sulfides, were evaluated six times daily. The results indicated that the incidences of odor ratings 1-5 were 71.9% and 81.0% in two seasons in the sampling area, and an open ditch for collecting industrial wastewater for feeding to the wastewater treatment plant was identified as the main odor source. Multiple regression analysis showed that the odor rating significantly correlated with TVOC concentration and wind speed (P<0.05); odor intensity increased by 0.001 units on the rating scale for each 1ppb increase in TVOCs, and decreased by 0.154 units for each 1m/s increase in wind speed. This study developed a method to explore malodor pollution in industrial park, providing a novel thinking to understand and resolve malodor problems.
KW - Industrial park
KW - Malodor
KW - Odor intensity
KW - TVOCs
UR - http://www.scopus.com/inward/record.url?scp=84865530447&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2012.08.056
DO - 10.1016/j.scitotenv.2012.08.056
M3 - Article
C2 - 22944219
AN - SCOPUS:84865530447
SN - 0048-9697
VL - 437
SP - 270
EP - 275
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -