Investigation on Dioxin Level of Flue Gas, Ambient Air, Vegetation and Soil Nearby Large-Scale MSWI in Taiwan

Abstract

We set up information about Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/F) level in flue gas, ambient air, banyan leaves and soil nearby Muzha MSWI, located in the north of Taiwan. Total PCDD/F I-TEQ concentrations in flue gas are 0.0995, 0.0711ng I-TEQ/Nm3, respectively, in spring, autumn, all below the emission limit regulated by Taiwan EPA, 0.1ng I-TEQ/Nm3 . The mean PCDD/F concentrations in ambient air nearby Muzha MSWIs are 0.0283, 0.0357, 0.0391 and 0.05638pg I-TEQ/Nm3, respectively at four seasons. The mean PCDD/F concentrations in banyan leaves nearby are 3.86, 0.873ng I-TEQ/kg, respectively in spring, autumn. The mean PCDD/F concentrations in soil nearby are 1.733, 2.061ng I-TEQ/kg, respectively in spring, autumn, much lower than the emission limit in soil regulated by Taiwan EPA, 1000ng I-TEQ/kg. By comparing the PCDD/F concentration of sample at upwind and downwind sampling sites, the PCDD/F influence from Muzha MSWI on nearby ambient air, vegetation and soil is not obvious.

Air concentrations and deposition of chlorinated dioxins and furans (PCDD/F) at three high alpine monitoring stations: Trends and dependence on air masses

“…However, one waste incineration pattern named "waste incineration 1" did not additionally show high concentrations OCDD which is fitting to a signature for waste incineration reported by Colombo et al (2009). The other waste incineration pattern "waste incineration 2" includes high concentrations of OCDD which mirrors emissions from municipal waste incineration reported by Wang et al (2013). Both waste incineration patterns together contributed between 18 and 43 percent of PCDD/F concentrations.…”

“…To execute the PMF in order to calculate the PMF-factors, we used 20 iterations by using a number of 6 contributing factors, expecting contributions from waste incineration, steel production, forest fire, coal burning and heating, traffic, and one undefined source. Congener patterns of the calculated PMF-factors were compared with congener patterns from the literature to estimate the contribution from different sources (Alcock et al, 1998;Aristiz� abal et al, 2011;Castro-Jim� enez et al, 2008;Colombo et al, 2009;Colombo et al, 2013;Coutinho et al, 2015;Denys et al, 2012;Gullett and Touati, 2003;Gunes and Saral, 2014;Hagenmaier et al, 1994;Li et al, 2010;Lin et al, 2007;Mosca et al, 2012;Wang et al, 2013). If no clear pattern could be distinguished for PMF-factors, the unclear PMF-factors were merged into one which we depicted "undefined".…”

Contamination characteristics, coexistence relationships and health risk assessment of dioxins and metals in topsoil around municipal solid waste incinerator in Hainan, China

“…Under such background, many studies have been performed on the characteristics and potential human health risk assessment of dioxins and metals in soils near MSW incinerator. Most studies are confined to a certain type of toxic pollutant, such as metals (Chabukdhara et al, 2016;Li et al, 2017;Ma et al, 2018) or dioxins (Wang et al, 2013;Meng et al, 2016;Deng et al, 2020b;Van Drooge et al, 2021). However, researches that comprehensively considers different types of toxic pollutants are still lacking.…”