Contamination profiles and health impact of benzothiazole and its derivatives in PM2.5 in typical Chinese cities

Liao, Xiaoliang; Zou, Ting; Chen, Min; Yang, Chun; Qiu, Bojun; Chen, Zhi Feng; Tsang, Suk Ying; Qi, Zenghua; Cai, Zongwei

doi:10.1016/j.scitotenv.2020.142617

Cited by 25 publications

(18 citation statements)

References 63 publications

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“…Our work constitutes one of the few studies characterizing such a large variety of plastic additive chemicals in an ambient atmosphere. While several recent studies have published work on selected emerging chemicals in atmospheric environments, , few of them have reached the same scale as our work. Our findings make an essential contribution to a better understanding of airborne chemical pollution and related human health risks.…”

Section: Introductionmentioning

confidence: 99%

Plastic Additives in Ambient Fine Particulate Matter in the Pearl River Delta, China: High-Throughput Characterization and Health Implications

Liu

Zeng

Dong

et al. 2021

Environ. Sci. Technol.

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Elucidation of the chemical components of airborne fine particulate matter (PM 2.5 ) facilitates the characterization of atmospheric contamination sources and associated human exposure risks. In the present study, we employed a high-throughput analytical approach to investigate the abundance and distribution of 163 plastic additives in ambient PM 2.5 collected from 94 different sites across the Pearl River Delta region, China. These chemicals are from six categories, including organophosphate esters (OPEs), phthalate esters (PAEs), PAE replacements, bisphenol analogues, UV stabilizers, and antioxidants. Ninety-three of them exhibited a detection frequency greater than 50% in PM 2.5 , while the combined concentrations of target plastic additives ranged from 610 to 49,400 μg/g (median: 3500 μg/g) across sites. By category, concentrations of PAEs (median: 2710 μg/g) were one to three orders of magnitude greater than those of other groups, followed by PAE replacements (540 μg/g) and OPEs (76.2 μg/g). Chemical-dependent exposure risks to PM 2.5 -bound plastic additives were characterized via the estimated daily intake and hazard quotient (HQ) approaches, which resulted in two different risk prioritization systems. Although the HQ approach suggested no or very low health concerns when considering individual chemicals, the complexity of co-concurrent chemicals in PM 2.5 raises the concern on potential health risks from exposure to airborne particles and a cocktail of chemical components.

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Section: Introductionmentioning

confidence: 99%

Plastic Additives in Ambient Fine Particulate Matter in the Pearl River Delta, China: High-Throughput Characterization and Health Implications

Liu

Zeng

Dong

et al. 2021

Environ. Sci. Technol.

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“…The pillar industries of GBA are mainly light industries such as electronics, electrical machinery and petrochemical industry; For this reason, the PM 2.5 concentrations and composition in Guangzhou differ significantly from other regions in China, i.e., lower concentrations but a larger organic fraction ( Chen et al, 2020a ; Liao et al, 2021 ). Over the past year, numerous reports have analyzed PM 2.5 contamination profiles, formation mechanisms and sources during the COVID-19 lockdown through various methods, e.g., satellite remote sensing, online monitoring, and mathematical models.…”

Section: Introductionmentioning

confidence: 99%

Investigation of PM2.5 pollution during COVID-19 pandemic in Guangzhou, China

Wen

Yang

Liao

et al. 2022

Journal of Environmental Sciences

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The COVID-19 pandemic has raised awareness about various environmental issues, including PM 2.5 pollution. Here, PM 2.5 pollution during the COVID-19 lockdown was traced and analyzed to clarify the sources and factors influencing PM 2.5 in Guangzhou, with an emphasis on heavy pollution. The lockdown led to large reductions in industrial and traffic emissions, which significantly reduced PM 2.5 concentrations in Guangzhou. Interestingly, the trend of PM 2.5 concentrations was not consistent with traffic and industrial emissions, as minimum concentrations were observed in the fourth period (3/01-3/31, 22.45 μg•m −3 ) of the lockdown. However, the concentrations of other gaseous pollutants, e.g., SO 2 , NO 2 and CO, were correlated with industrial and traffic emissions, and the lowest values were noticed in the second period (1/24-2/03) of the lockdown. Meteorological correlation analysis revealed that the decreased PM 2.5 concentrations during COVID-19 can be mainly attributed to decreased industrial and traffic emissions rather than meteorological conditions. When meteorological factors were included in the PM 2.5 composition and backward trajectory analyses, we found that long-distance transportation and secondary pollution offset the reduction of primary emissions in the second and third stages of the pandemic. Notably, industrial PM 2.5 emissions from western, southern and southeastern Guangzhou play an important role in the formation of heavy pollution events. Our results not only verify the importance of controlling traffic and industrial emissions, but also provide targets for further improvements in PM 2.5 pollution.

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“…On the other hand, the manuscripts cited and discussed in this review clearly showed that heterocyclic compounds play an essential role in controlling a phytopathogen such as FOX , being benzothiazole derivatives, the most studied compounds with the highest antifungal activity ( Table 1 ). Some reports have described biological and environmental effects and their potential activity, degradation pathways, and subproducts characterization of synthetic heterocycles such as podophyllotoxin derivatives [ 148 ], rhodamine derivatives and analogs [ 149 ], benzothiazole and benzotriazole derivatives—which have emerged as contaminants in aquatic environments and toxic to aquatic organisms [ 150 , 151 , 152 , 153 ]—and polycyclic (hetero)aromatic hydrocarbons compounds which recently was demonstrated their predominance in contaminated food samples and their relationship with potential toxicity [ 154 ]. However, further studies are necessary to establish these promissory antifungal agents’ potential cytotoxicity and environmental risks.…”

Section: Discussionmentioning

confidence: 99%

A Compendium of the Most Promising Synthesized Organic Compounds against Several Fusarium oxysporum Species: Synthesis, Antifungal Activity, and Perspectives

2021

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Vascular wilt caused by F. oxysporum (FOX) is one of the main limitations of producing several agricultural products worldwide, causing economic losses between 40% and 100%. Various methods have been developed to control this phytopathogen, such as the cultural, biological, and chemical controls, the latter being the most widely used in the agricultural sector. The treatment of this fungus through systemic fungicides, although practical, brings problems because the agrochemical agents used have shown mutagenic effects on the fungus, increasing the pathogen’s resistance. The design and the synthesis of novel synthetic antifungal agents used against FOX have been broadly studied in recent years. This review article presents a compendium of the synthetic methodologies during the last ten years as promissory, which can be used to afford novel and potential agrochemical agents. The revision is addressed from the structural core of the most active synthetic compounds against FOX. The synthetic methodologies implemented strategies based on cyclo condensation reactions, radical cyclization, electrocyclic closures, and carbon–carbon couplings by metal–organic catalysis. This revision contributes significantly to the organic chemistry, supplying novel alternatives for the use of more effective agrochemical agents against F. oxysporum.

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Contamination profiles and health impact of benzothiazole and its derivatives in PM2.5 in typical Chinese cities

Cited by 25 publications

References 63 publications

Plastic Additives in Ambient Fine Particulate Matter in the Pearl River Delta, China: High-Throughput Characterization and Health Implications

Plastic Additives in Ambient Fine Particulate Matter in the Pearl River Delta, China: High-Throughput Characterization and Health Implications

Investigation of PM2.5 pollution during COVID-19 pandemic in Guangzhou, China

A Compendium of the Most Promising Synthesized Organic Compounds against Several Fusarium oxysporum Species: Synthesis, Antifungal Activity, and Perspectives

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