Residue levels of phthalate esters in water and sediment samples from the Klang River basin

Tan, Guan Huat

doi:10.1007/bf00197427

Cited by 87 publications

(45 citation statements)

References 5 publications

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“…[1][2][3][4][5] Rivers are the major source of fresh water available for many purposes, e.g., consumption, industry, and agriculture. There is an increasing awareness of the necessity for conserving fresh water resources.…”

Section: Introductionmentioning

confidence: 99%

Bacterial Community Composition and Activity in Urban Rivers in Thailand and Malaysia.

Kenzaka

Yamaguchi

Prapagdee

et al. 2001

JOURNAL OF HEALTH SCIENCE

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The phylogenetic composition and physiological activity of bacterioplankton communities in two different rivers in Southeast Asian countries, the Kelang River basin in Malaysia and Chao Phraya River in Thailand, which are polluted by untreated or incompletely treated sewage, were analyzed by fluorescent in situ hybridization (FISH) and FISH combined with the direct viable count technique (DVC-FISH). The results were also compared with those from temperate zone habitats in eutrophic rivers in Osaka, Japan. FISH detected 56% to 78% of total cells with the probe EUB338 targeted for the domain Bacteria in samples from the Kelang River basin, compared with 14% to 33% in samples from the Chao Phraya River. DVC-FISH with an antibiotic cocktail increased the fraction of bacteria detectable with EUB338 in the Chao Phraya River (72% to 75% of total bacteria), while no appreciable change was found in samples from the Kelang River basin. These results show that in situ physiologic activity of resident bacteria was generally high in the Kelang River basin and low but present in the Chao Phraya River. Bacterial community structures in both rivers were dominated by the beta (5% to 39%) and gamma (4% to 41%) subclasses of Proteobacteria. In river water samples from Osaka, bacterial community structures determined by FISH were dominated by the beta subclass, but those determined by DVC-FISH were dominated by both beta (26% to 39%) and gamma (17% to 47%) subclasses. This result implies that in situ physiological activity of the gamma subclass is low in the eutrophic river in Osaka, but those bacteria have the potential for cell division.

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Section: Introductionmentioning

confidence: 99%

Bacterial Community Composition and Activity in Urban Rivers in Thailand and Malaysia.

Kenzaka

Yamaguchi

Prapagdee

et al. 2001

JOURNAL OF HEALTH SCIENCE

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“…There have been ubiquitous contaminations in every environmental matrix because of their weak binding forces with other components of environmental compartments (Blair et al 2009). Di-n-butyl phthalate (DnBP) and bis(2-ethylhexyl) phthalate (DEHP), two representative PAEs in soils and sediments of China (Tan 1995;Wang et al 2006;Liu et al 2009b), are causing increasing concern because of their harmful effects on urease, phosphatase, catalase, microorganisms, animals, and the microbial community in contaminated soils (Chen et al 2004;Gao and Chen 2008;Xie et al 2009;Gao 2010 Yin et al 2002); significant accumulation and differences in expression of six protein spots in the leaf tissue of Chinese cabbage (Brassica rapa var. chinensis) have also been observed (Liao et al 2009).…”

Section: Background Aims and Scopementioning

confidence: 99%

Rape (Brassica chinensis L.) seed germination, seedling growth, and physiology in soil polluted with di-n-butyl phthalate and bis(2-ethylhexyl) phthalate

Christie

Teng

et al. 2013

Environ Sci Pollut Res

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Phthalic acid esters (PAEs) pollution in agricultural soils caused by widely employed plastic products is becoming more and more widespread in China. PAEs polluted soil can lead to phytotoxicity in higher plants and potential health risks to human being. We evaluated the individual toxicity of di-n-butyl phthalate (DnBP) and bis (2-ethylhexyl) phthalate (DEHP), two representative PAEs, to sown rape (Brassica chinensis L.) seeds within 72 h (as germination stage) and seedlings after germination for 14 days by monitoring responses and trends of different biological parameters. No significant effects of six concentrations of PAE ranging from 0 (not treated/NT) to 500 mg kg −1 on germination rate in soil were observed. However, root length, shoot length, and biomass (fresh weight) were inhibited by both pollutants (except root length and biomass under DEHP). Stimulatory effects of both target pollutants on malondialdehyde (MDA) content, superoxide dismutase (SODase) activity, ascorbate peroxidase (APXase) content, and polyphenoloxidase (PPOase) activity in shoots and roots (SODase activity in shoots excluded) were in the same trend with the promotion of proline (Pro) but differed with acetylcholinesterase activity (except in shoots under DnBP) for analyzed samples treated for 72 h and 14 days.Responses of representative storage compounds free amino acids (FAA) and total soluble sugar (TSS) under both PAEs were raised. Sensitivity of APXase and Pro in roots demonstrates their possibility in estimation of PAE phytotoxicity and the higher toxicity of DnBP, which has also been approved by the morphological photos of seedlings at day 14. Higher sensitivity of the roots was also observed. The recommended soil allowable concentration is 5 mg DnBPkgsoil for the development of rape. We still need to know the phytotoxicity of DEHP at whole seedling stage for both the growing and development; on the other hand, soil criteria for PAE compounds are urgently required in China.

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“…As a result of their widespread use, PAEs are commonly found in the environment (Jobling et al, 1995). For example, the concentration of PAEs ranges from 0.1-300 μg/L at the seawater surface (Mayer et al, 1972;Giam et al, 1978;Fatoki and Vernon, 1990;Gledhill et al, 1980) and 0.1 ng/g-100 μg/g in river sediments (Thurén, 1986;Tan, 1995). Di-octyl phthalate (DOP) is a major component of PAEs and is widely used in several industries (e.g., food packaging materials, medical devices, etc.)…”

Section: Introductionmentioning

confidence: 99%

Long-term effects of di-octyl phthalate on the expression of immune-related genes in Tegillarca granosa

Dai

et al. 2016

Chin. J. Ocean. Limnol.

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Di-octyl phthalate (DOP) is widely used as a plasticizer in the plastics industry. As a result, DOP is often found in marine water ecosystems where many species are exposed to it. Our objective was to evaluate the eff ect of long-term (14 d) DOP exposure (2.6, 7.8, or 31.2 mg/L) on the expression of immunerelated genes in Tegillarca granosa . The expression of small heat shock protein (sHSPs) and tissue inhibitor of metalloproteinase (TIMP) were highest in clams exposed to 31.2 mg/L DOP on days 7 and 14. The relative expression of Tg-ferritin, superoxide dismutase (SOD), and metallothionein (MT) increased initially then decreased as the concentration of DOP increased. The hemoglobin of T . granosa (Tg-HbI) exhibited two distinct expression patterns at two time points. Our results suggest that the immune response of T . granosa against DOP pollution varies depending on the dose. Additionally, we identifi ed some immune-related genes that are promising candidates for biomarkers of DOP.

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Residue levels of phthalate esters in water and sediment samples from the Klang River basin

Cited by 87 publications

References 5 publications

Bacterial Community Composition and Activity in Urban Rivers in Thailand and Malaysia.

Bacterial Community Composition and Activity in Urban Rivers in Thailand and Malaysia.

Rape (Brassica chinensis L.) seed germination, seedling growth, and physiology in soil polluted with di-n-butyl phthalate and bis(2-ethylhexyl) phthalate

Long-term effects of di-octyl phthalate on the expression of immune-related genes in Tegillarca granosa

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