Nontarget Identification of Novel Organophosphorus Flame Retardants and Plasticizers in Rainfall Runoffs and Agricultural Soils around a Plastic Recycling Industrial Park

Environmental Science & Technology, Год журнала: 2023, Номер 57(34), С. 12794 - 12805

Опубликована: Авг. 14, 2023

Plastic recycling and reprocessing activities may release organophosphate ester (OPE) flame retardants plasticizers into the surrounding environment. However, relevant contamination profiles impacts remain not well studied. This study investigated occurrence of 28 OPEs their metabolites (mOPEs) in rainfall runoffs agricultural soils around one largest plastic industrial parks North China identified novel organophosphorus compounds (NOPs) using high-resolution mass spectrometry-based nontarget analysis. Twenty twenty-seven were detected runoff water soil samples, with total concentrations 86.0–2491 ng/L 2.53–199 ng/g dw, respectively. Thirteen NOPs identified, which eight reported environment for first time, including a chlorine-containing OPE, an heterocycle, phosphite, three OPE metabolites, two oligomers. Triphenylphosphine oxide diphenylphosphinic acid occurred ubiquitously soils, up to 390 40.2 The downwind areas park showed elevated levels NOPs. contribution hydroxylated mOPEs was higher than runoffs. These findings suggest that are significant sources biotransformation further increase ecological human exposure risk.

Язык: Английский

---

Occurrence and migration of organophosphite and organophosphate esters into food simulants from single-use food packaging in China

Environmental Pollution, Год журнала: 2023, Номер 330, С. 121782 - 121782

Опубликована: Май 8, 2023

Язык: Английский

---

Organophosphate esters (OPEs) in plastic food packaging: non-target recognition, and migration behavior assessment

Environment International, Год журнала: 2023, Номер 177, С. 108010 - 108010

Опубликована: Июнь 2, 2023

Organophosphate esters (OPEs) are widely used as plasticizers in plastic food packaging; however, the migration of OPEs from to is largely unstudied. We do not even know specific number that exist packaging. Herein, an integrated target, suspect, and nontarget strategy for screening was optimized using ultrahigh-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS). The analyze 106 samples packaging collected Nanjing city, China, 2020. HRMS allowed full or tentative identification 42 OPEs, which seven were reported first time. Further, oxidation products bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite (AO626) plastics identified, implying organophosphite antioxidants (OPAs) could be important indirect source plastics. examined with four simulated foods. Twenty-six out detected at least one simulants, particularly isooctane, diverse elevated concentrations. Overall, study supplements list humans ingest well provides essential information regarding food.

Язык: Английский

---

Uptake, translocation, and metabolism of organophosphate esters (OPEs) in plants and health perspective for human: A review

Environmental Research, Год журнала: 2024, Номер 249, С. 118431 - 118431

Опубликована: Фев. 10, 2024

Язык: Английский

---

Bioaccumulation and Potential Endocrine Disruption Risk of Legacy and Emerging Organophosphate Esters in Cetaceans from the Northern South China Sea

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Фев. 22, 2024

Despite the increasing health risks shown by continuous detection of organophosphate esters (OPEs) in biota recent years, information on occurrence and potential OPEs marine mammals remains limited. This study conducted first investigation into body burdens 10 traditional (tOPEs) five emerging (eOPEs) cetacean species (n = 84) from northern South China Sea (NSCS) during 2005–2021. All OPEs, except for 2-ethylhexyl diphenyl phosphate (EHDPHP), were detected these cetaceans, indicating their widespread NSCS. Although levels ∑10tOPEs humpback dolphins remained stable 2005 to 2021, concentrations ∑5eOPEs showed a significant increase, suggesting growing demand new-generation China. Dolphins proximity urban regions generally exhibited higher OPE than those rural areas, mirroring environmental trends occurring this area. congeners, EHDPHP, maternal transfer ratio >1, that dolphin placenta may not be an efficient barrier OPEs. The observed correlations between hormones (triiodothyronine, thyroxine, testosterone) indicated exposures might have endocrine disruption effects population.

Язык: Английский

---

Contamination Status of Novel Organophosphate Esters Derived from Organophosphite Antioxidants in Soil and the Effects on Soil Bacterial Communities

Environmental Science & Technology, Год журнала: 2024, Номер 58(24), С. 10740 - 10751

Опубликована: Май 21, 2024

The contamination status of novel organophosphate esters (NOPEs) and their precursors organophosphite antioxidants (OPAs) hydroxylated/diester transformation products (OH-OPEs/di-OPEs) in soils across a large-scale area China were investigated. total concentrations the three test NOPEs soil 82.4–716 ng g–1, which considerably higher than those traditional OPEs (4.50–430 g–1), OPAs (n.d.–30.8 OH-OPEs (n.d.–0.49 di-OPEs (0.57–21.1 g–1). One NOPE compound, i.e., tris(2,4-di-tert-butylphenyl) phosphate (AO168 = O) contributed over 65% studied OPE-associated contaminants. A 30-day incubation experiment was performed to confirm influence AO168 O on bacterial communities. Specific genera belonging Proteobacteria, such as Lysobacter Ensifer, enriched O-contaminated soils. Moreover, ecological function methylotrophy observed be significantly enhanced (t-test, p < 0.01) treated with O, while nitrogen fixation inhibited 0.01). These findings comprehensively revealed contaminants environment provided first evidence effects microbial

Язык: Английский

---

Nontarget Identification of Novel Organophosphorus Flame Retardants and Plasticizers in Indoor Air and Dust from Multiple Microenvironments in China

Environmental Science & Technology, Год журнала: 2024, Номер 58(18), С. 7986 - 7997

Опубликована: Апрель 24, 2024

The indoor environment is a typical source for organophosphorus flame retardants and plasticizers (OPFRs), yet the characteristics of OPFRs in different microenvironments remain less clear. This study collected 109 air samples 34 paired dust from 4 within university Tianjin, China, including dormitory, office, library, information center. 29 target were analyzed, novel compounds (NOPs) identified by fragment-based nontarget analysis. Target exhibited highest concentrations 46.2–234 ng/m3 20.4–76.0 μg/g, respectively, center, where chlorinated dominant. Triphenyl phosphate (TPHP) was primary OPFR office air, while tris(2-chloroethyl) dominated dust. TPHP predominant library. Triethyl (TEP) ubiquitous tris(2-butoxyethyl) particularly high 9 25 NOPs first time, mainly center such as bis(chloropropyl) 2,3-dichloropropyl phosphate. Diphenyl phosphinic acid, two hydroxylated methylated metabolites tris(2,4-ditert-butylphenyl) phosphite (AO168), dimer newly reported environment. widely associated with OPFRs, their human exposure risk environmental behaviors warrant further study.

Язык: Английский

---

Water temperature governs organophosphate ester dynamics in the aquatic food chain of Poyang Lake

Environmental Science and Ecotechnology, Год журнала: 2024, Номер 21, С. 100401 - 100401

Опубликована: Фев. 19, 2024

Organophosphate esters (OPEs) are increasingly recognized as pervasive environmental contaminants, primarily from their extensive application in flame retardants and plasticizers. Despite widespread presence, the intricacies of OPE bioaccumulation within aquatic ecosystems remain poorly understood, particularly determinants influencing distribution dynamics across food chains. Here we show that water temperature plays a crucial role modulating dispersion environment Poyang Lake. We quantified concentrations various matrices, uncovering levels ranging 0.198 to 912.622 ng L−1 water, 0.013–493.36 per g dry weight (dw) sediment, 0.026–41.92 wet (ww) plankton, 0.13–2100.72 dw benthic invertebrates, 0.31–3956.49 wild fish, highlighting pronounced gradient. Notably, intestines emerged principal site for absorption, displaying highest among seven tissues examined. Among OPEs, tris(chloroethyl) phosphate was distinguished by its significant potential web, suggesting need heightened scrutiny. The propensity accumulation markedly higher invertebrates than indicating differential vulnerability biota. This study lays foundational basis risk assessment OPEs emerging contaminants underscores imperative prioritize examination effects, inform future safeguarding strategies.

Язык: Английский

---

Acute exposure to tris(2,4-di-tert-butylphenyl)phosphate elicits cardiotoxicity in zebrafish (Danio rerio) larvae via inducing ferroptosis

Journal of Hazardous Materials, Год журнала: 2024, Номер 471, С. 134389 - 134389

Опубликована: Апрель 23, 2024

Язык: Английский

---

Uptake, translocation, and biotransformation of phthalate acid esters in crop plants: A comprehensive review

Journal of Hazardous Materials, Год журнала: 2025, Номер 489, С. 137580 - 137580

Опубликована: Фев. 11, 2025

Язык: Английский

---