Occurrence of polychlorinated biphenyl congeners in marine sediment of Makran region, Chabahr bay, Iran

Mehdinia, Ali; Bateni, Fatemeh; Vaighan, Davoud Jahedi; Fumani, Neda Sheijooni

doi:10.1016/j.marpolbul.2021.112038

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…Concentrations of ∑PCBs (Sum of all the detectable PCBs) varied from 0.13 to 4.7 ng g -1 (Mean: 1.7±1.2 ng g -1 ). These values were higher than that of the coastal East China Sea (Range: 0.024-0.34 ng g -1 , Mean: 0.127 ng g -1 ) [6], Liaohe Estuary, China (Range: 0.11-0.27 ng g -1 , Mean: 0.19 ng g -1 ) [16] and Makran region in Chabahr bay, Iran (Range: "not detected" -0.49 ng g -1 , Mean: 0.11 ng g -1 ) [17], but much lower than that of the highly urbanized regions such as Shanghai (Mean: 6.01 ng g -1 ) [18], the Yangtze River Estuary (Range: 2.2-40 ng g -1 , Mean: 14 ng g -1 ) [19], the Pearl River Delta (Mean: 122 ng g -1 ) [3], Potomac River in mid-Atlantic USA (Range: 1.8-158 ng g -1 ) [20] were listed as the dioxin-like PCBs (DL-PCBs) [23].…”

Section: Concentration and Spatial Distribution Of Pcbsmentioning

confidence: 99%

Polychlorinated Biphenyls (PCBs) in Urban Stream Sediments from Suzhou Industrial Park in China: Occurrence and Potential Risk

Yuan¹,

Wang²,

Wu³

et al. 2022

Pol. J. Environ. Stud.

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The concentration, spatial distribution, homologue profiles, sources, toxicity and risk of PCBs in urban stream sediments from a national eco-industrial park named Suzhou Industrial Park (SIP) in China were investigated in this work. Concentrations of ∑PCBs varied from 0.13 to 4.7 ng g -1 , with an average value of 1.7±1.2 ng g -1 . Spatial variations indicated that PCB concentrations had no correlation with land uses in the SIP. Tetra-PCBs and hexa-PCBs were the most abundant PCB homologues, which were different from those found in Chinese commercial PCBs and might be mainly derived from other sources. The potential toxicity and risk of PCBs here might be negligible based on the total equivalent concentration (TEQ) analysis and sediment quality guidelines (SQG).

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Section: Concentration and Spatial Distribution Of Pcbsmentioning

confidence: 99%

Polychlorinated Biphenyls (PCBs) in Urban Stream Sediments from Suzhou Industrial Park in China: Occurrence and Potential Risk

Yuan¹,

Wang²,

Wu³

et al. 2022

Pol. J. Environ. Stud.

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“…Soft corals related to the genus Sinularia, comprising almost 90 species, are broadly distributed in the tropical marine environment (1). A highly diverse group of marine organisms are found on coral reefs, which are known to produce a wide variety of bioactive compounds (2,3).…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and Cytotoxic Potential of Two Steroids from the Indonesian Soft Coral Sinularia polydactila

Putra¹,

Karim²,

Nugroho

2021

Jundishapur J Nat Pharm Prod

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Background: Soft corals of the genus Sinularia are well recognized as a rich source of steroidal compounds. These constituents, mainly steroids, have been reported as possessing antitumor, antimicrobial, and antiviral activities. Objectives: This study was designed to isolate and elucidate antibacterial and cytotoxic compounds from the soft coral Sinularia polydactila. Methods: Structure elucidation of steroids was determined based on spectroscopic data through 1D and 2D NMR analyses and mass spectrometry, with the results compared to data in the literature. Antibacterial activity was determined using four human bacterial pathogens, namely B. subtilis (ATCC 6633), P. aeruginosa (ATCC 27853), S. aureus (ATCC 25923), and E. coli (ATCC 25922). Cytotoxic activity was evaluated using the human colon cancer cell HCT 116 and brine shrimp lethality assay (BSLA). Results: Two steroids (Compounds 1 - 2) were isolated from the Indonesian soft coral Sinularia polydactila. (22R,23R,24R)-22,23-methylene-24-methylcholest-6-en-5α,8α-epidioxy-3β-ol (1) and 5α,8α-Epidioxy-24(R)-methylcholesta-6,22-dien-3α-ol (2) showed moderate activity against colon carcinoma cancer HCT 116 at the concentrations of 24.8 and 27.3 μg/mL, respectively. Furthermore, compounds 1 and 2 showed cytotoxic activity using the brine shrimp lethality assay with the concentrations of 57.1 and 121.3 3 μg/mL, respectively. Compound 2 showed moderate activity against S. aureus and B. subtilis at the 250 μg/mL concentration. Conclusions: Two steroids isolated from soft coral Sinularia polydactila were found to possess moderate cytotoxic and antibacterial activities.

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Exposure sources of polychlorinated biphenyls (PCBs) and health risk assessment: a systematic review in Iran

Ravanipour

Nabipour

Yunesian

et al. 2022

Environ Sci Pollut Res

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Occurrence of polychlorinated biphenyl congeners in marine sediment of Makran region, Chabahr bay, Iran

Cited by 5 publications

References 31 publications

Polychlorinated Biphenyls (PCBs) in Urban Stream Sediments from Suzhou Industrial Park in China: Occurrence and Potential Risk

Polychlorinated Biphenyls (PCBs) in Urban Stream Sediments from Suzhou Industrial Park in China: Occurrence and Potential Risk

Antibacterial and Cytotoxic Potential of Two Steroids from the Indonesian Soft Coral Sinularia polydactila

Exposure sources of polychlorinated biphenyls (PCBs) and health risk assessment: a systematic review in Iran

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