Occurrence, behavior, and fate of organophosphate esters (OPEs) in subtropical paddy field environment: A case study in Nanning City of South China

Zhengen, Zhang; Lin, Guolin; Lin, Tian; Zhang, Ruijie; Jin, Lanshu; Di, Ya-Li

doi:10.1016/j.envpol.2020.115675

Cited by 43 publications

(10 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The total concentration of OPE in urban surface water was generally higher than that in the surface water of rivers in the rural regions [47]. For instance, the total concentrations of OPE in the urban region of Beijing varied between 3.24 and 10,945 ngL −1 with a mean value of 954 ngL −1 , which is significantly higher than the surface water in the rural region Rivers can also be one of the major sources/pathways for pollutants entering the sea [35,44].…”

Section: Water and Sedimentmentioning

confidence: 84%

“…Treated and untreated wastewaters, rainwaters, and road runoffs can also make urban surface water contain more OPEs [13]. The similarity of the composition profiles between the urban and rural surface waters indicated the emission of OPEs in the urban area may be the primary source of OPEs in the rural areas, such as the paddy fields [47]. Tris(2-chloroethyl) phosphate (TCEP) was the dominant compound in urban surface water, while in rural surface water, it was Tris (2-chloroiso-propyl) phosphate (TCIPP).…”

Section: Water and Sedimentmentioning

confidence: 99%

See 1 more Smart Citation

Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Zhi-hui

Yin

Wen

et al. 2021

Toxics

View full text Add to dashboard Cite

Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers. OPEs have been released into various environments (e.g., water, sediments, dust and air, and soil). To investigate the occurrence and distribution of OPEs in various environments in China, this review collects and discusses the published scientific studies in this field. Chlorinated OPEs, as flame retardants, are the predominant OPEs found in the environment. The analysis of data revealed large concentration variations among microenvironments, including inflowing river water (range: 0.69–10.62 µgL−1), sediments (range: 0.0197–0.234 µg/g), dust (range: 8.706–34.872 µg/g), and open recycling sites’ soil (range: 0.122–2.1 µg/g). Moreover, OPEs can be detected in the air and biota. We highlight the overall view regarding environmental levels of OPEs in different matrices as a starting point to monitor trends for China. The levels of OPEs in the water, sediment, dust, and air of China are still low. However, dust samples from electronic waste workshop sites were more contaminated. Human activities, pesticides, electronics, furniture, paint, plastics and textiles, and wastewater plants are the dominant sources of OPEs. Human exposure routes to OPEs mainly include dermal contact, dust ingestion, inhalation, and dietary intake. The low level of ecological risk and risk to human health indicated a limited threat from OPEs. Furthermore, current challenges and perspectives for future studies are prospected. A criteria inventory of OPEs reflecting the levels of OPEs contamination association among different microenvironments, emerging OPEs, and potential impact of OPEs on human health, particularly for children are needed in China for better investigation.

show abstract

Section: Water and Sedimentmentioning

confidence: 84%

Section: Water and Sedimentmentioning

confidence: 99%

Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Zhi-hui

Yin

Wen

et al. 2021

Toxics

View full text Add to dashboard Cite

show abstract

“…We reviewed the previous reports of organic pollutants in rain and air (particulate and gas phase), and a total of 45 publications were found and used for this study. − There are additional reports of field concentrations of organic pollutants in rain, − but they lack concurrently measured atmospheric concentrations, or data were not given in the manuscript, and thus rain–air partition constants could not be estimated. Table S4 summarizes the data set contained in the 45 publications used for the partition constants.…”

Section: Methodsmentioning

confidence: 99%

“…Snow and rain deposition have been compared previously, suggesting that snow is significantly more efficient than rain when collecting POPs from the atmosphere . Nowadays, the occurrence of legacy and emerging POPs have been reported in rain from diverse climatic regions, with what has become a remarkable body of field evidence of the role of rain as a deposition process. − …”

Section: Introductionmentioning

confidence: 99%

Rain Amplification of Persistent Organic Pollutants

Casas

Martinez-Varela

Vila‐Costa

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

Scavenging of gas- and aerosol-phase organic pollutants by rain is an efficient wet deposition mechanism of organic pollutants. However, whereas snow has been identified as a key amplification mechanism of fugacities in cold environments, rain has received less attention in terms of amplification of organic pollutants. In this work, we provide new measurements of concentrations of perfluoroalkyl substances (PFAS), organophosphate esters (OPEs), and polycyclic aromatic hydrocarbons (PAHs) in rain from Antarctica, showing high scavenging ratios. Furthermore, a meta-analysis of previously published concentrations in air and rain was performed, with 46 works covering different climatic regions and a wide range of chemical classes, including PFAS, OPEs, PAHs, polychlorinated biphenyls and organochlorine compounds, polybromodiphenyl ethers, and dioxins. The rain–aerosol (K RP) and rain–gas (K RG) partition constants averaged 105.5 and 104.1, respectively, but showed large variability. The high field-derived values of K RG are consistent with adsorption onto the raindrops as a scavenging mechanism, in addition to gas–water absorption. The amplification of fugacities by rain deposition was up to 3 orders of magnitude for all chemical classes and was comparable to that due to snow. The amplification of concentrations and fugacities by rain underscores its relevance, explaining the occurrence of organic pollutants in environments across different climatic regions.

show abstract

“…Although triphosphate compounds had not been found to be bioaccumulative, certain monoesters and diesters of their degradation intermediates had been found to be endocrine disrupting and neurotoxic [ 15 , 16 ]. They had effects on water bodies, plants, aquatic organisms such as fish, and ultimately through the food chain or direct contact with the human body [ 17 ]. Of the halogenated OPEs studied so far, TCPP and TCEP were the most difficult to degrade and were prevalent in water environments [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Organophosphate Esters (OPEs) Flame Retardants in Water: A Review of Photocatalysis, Adsorption, and Biological Degradation

et al. 2023

View full text Add to dashboard Cite

As a substitute for banned brominated flame retardants (BFRs), the use of organophosphate esters (OPEs) increased year by year with the increase in industrial production and living demand. It was inevitable that OPEs would be discharged into wastewater in excess, which posed a great threat to the health of human beings and aquatic organisms. In the past few decades, people used various methods to remove refractory OPEs. This paper reviewed the photocatalysis method, the adsorption method with wide applicability, and the biological method mainly relying on enzymolysis and hydrolysis to degrade OPEs in water. All three of these methods had the advantages of high removal efficiency and environmental protection for various organic pollutants. The degradation efficiency of OPEs, degradation mechanisms, and conversion products of OPEs by three methods were discussed and summarized. Finally, the development prospects and challenges of OPEs’ degradation technology were discussed.

show abstract

Occurrence, behavior, and fate of organophosphate esters (OPEs) in subtropical paddy field environment: A case study in Nanning City of South China

Cited by 43 publications

References 47 publications

Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Rain Amplification of Persistent Organic Pollutants

Organophosphate Esters (OPEs) Flame Retardants in Water: A Review of Photocatalysis, Adsorption, and Biological Degradation

Contact Info

Product

Resources

About