Polychlorinated naphthalenes and other chlorinated tricyclic aromatic hydrocarbons emitted from combustion of polyvinylchloride

Abstract

Chloronaphthalenes (CNs) and phenanthrenes or/and anthracenes (CP/CAs) were detected in the emissions of polyvinylchloride (PVC) combustion at 900• C. The presence of metallic iron, copper, or aluminum increased the formation of highly chlorinated CNs (tri-to octachloro-homologues) in the PVC combustion process. Total levels of CNs and CP/CAs were 40-48 and 76-116 mg/kg PVC, respectively, in the emissions from combustion of PVC with metals. Monochloronaphthalenes, dichloronaphtahlenes, monochlorophenanthrenes, and monochloroanthracenes were the predominant homologues. The other CN homologues were minor combustion byproducts. Detection of CNs in the PVC combustion emissions suggests that CN formation from solid waste incineration is a source of CNs in the environment.

Polychlorinated naphthalenes (PCNs) in riverine and marine sediments of the Laizhou Bay area, North China

“…According to samples' surroundings, these sites were obviously impacted by industrial thermal process, such as thermoelectricity and oil refining in addition to chemical industries. Many studies have shown that lower chlorinated congeners were prone to be formed during combustion or incineration process, while in technical PCN and PCB formulations, most products were dominant by highly chlorinated congeners (Helm and Bidleman, 2003;Liu et al, 2010;Wang et al, 2006;Yamashita et al, 2000a). Considering the high resemblance of profiles between industrial samples and CN19 0 CN21 CN24 CN14 CN15 CN16 CN23 CN42 CN33/34/37 CN47 CN36/45 CN28/43 CN27/30/39 CN32 CN35 CN38/40 CN46 CN52/60 CN58 CN61 CN50 CN51 CN54 CN57 CN62 CN53 CN59 CN49 CN56 CN66/67 CN64/68 CN69 CN71/72 CN63 CN65 CN73 CN74 CN19 CN21 CN24 CN14 CN15 CN16 CN23 CN42 CN33/34/37 CN47 CN36/45 CN28/43 CN27/30/39 CN32 CN35 CN38/40 CN46 CN52/60 CN58 CN61 CN50 CN51 CN54 CN57 CN62 CN53 CN59 CN49 CN56 CN66/67 CN64/68 CN69 CN71/72 CN63 CN65 CN73 CN74 DJW2 YHH1 XQH2 MH4 DJW1 DJW3 DJW4 ZMG3 YKG HW1014 DH1 DH2 BLH2 YH1 YH3 MH1 WH3 Halowax 1014 and sample surroundings, it can be indicated that PCNs in riverine sediments of the Laizhou Bay area were mainly from release of industrial usage.…”

Estimation and Characterization of Polychlorinated Naphthalene Emission from Coking Industries

“…It is well-known that toxic aromatic hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs), are formed during the coking process (33). Many researchers have demonstrated that PAHs are important precursors of dioxin-like contaminants (34)(35)(36), which are related to one another (37)(38)(39)(40)(41). The formation and emission of PCDD/Fs and PCBs from the coking process have been identified and quantified in previous studies (42,43).…”

“…It is well-known that toxic aromatic hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs), are formed during the coking process . Many researchers have demonstrated that PAHs are important precursors of dioxin-like contaminants − , which are related to one another − . The formation and emission of PCDD/Fs and PCBs from the coking process have been identified and quantified in previous studies , .…”

Using mass defect plots as a discovery tool to identify novel fluoropolymer thermal decomposition products

“…The thermal decomposition apparatus was based upon that of Wang et al . Experiments were performed in a quartz tube (2.54‐cm diameter, 68‐cm length) with a narrow outlet (4‐mm diameter) positioned within a Lindberg Blue M tube furnace (Thermo Fisher Scientific Inc., Asheville, NC, USA).…”