Occurrence and microbial degradation of phthalate esters in Taiwan river sediments

Yuan, S.Y.; Liu, C; Liao, Chien-Sen; Chang, Bea‐Ven

doi:10.1016/s0045-6535(02)00495-2

Cited by 346 publications

(151 citation statements)

References 18 publications

Supporting

Mentioning

132

Contrasting

Unclassified

Order By: Relevance

“…The phthalic acid ester degradation processes can further be influenced by the presence of oxygen in the soil. Under aerobic conditions, phthalic acid esters in particular diethyl phthalate, dipentyl phthalate, dibutyl phthalate, and butylbenzyl phthalate are readily degraded, but under anaerobic conditions which prevail in rice fields and deep soils, phthalic acid esters such as diethyl phthalate are not readily degraded (Yuan et al 2002). In a 1-year-old rice field, phthalic acid ester concentrations were significantly greater than those in a long-term bean field, and the concentrations of diethylhexyl phthalate and dibutyl phthalate were significantly greater in the deeper soils compared to those in shallow soils (Wang et al 2013b).…”

Section: Vertical Distribution Of Phthalic Acid Esters In Soilmentioning

confidence: 99%

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

He¹,

Gielen²,

Bolan³

et al. 2014

Agron. Sustain. Dev.

236

View full text Add to dashboard Cite

Phthalic acid esters have been used as plasticizers in numerous products and classified as endocrine-disrupting compounds. As China is one of the largest consumers of phthalic acid esters, some human activities may lead to the accumulation of phthalic acid esters in soil and result in contamination. Therefore, it is necessary for us to understand the current contamination status and to identify appropriate remediation technologies. Here, we reviewed the potential sources, distribution, and contamination status of phthalic acid esters in soil. We then described the ecological effect and human risk of phthalic acid esters and finally provided technologies to remediate phthalic acid esters. We found that (1) the application of plastic agricultural films, municipal biosolids, agricultural chemicals, and wastewater irrigation have been identified as the main sources for phthalic acid ester contamination in agricultural soil; (2) the distribution of phthalic acid esters in soils is determined by factors such as anthropogenic behaviors, soil type, properties of phthalic acid esters, seasonal variation, etc.; (3) the concentrations of phthalic acid esters in soil in most regions of China are exceeding the recommended values of soil cleanup guidelines used by the US Environmental Protection Agency (US EPA), causing phthalic acid ester in soils to contaminate vegetables; (4) phthalic acid esters are toxic to soil microbes and enzymes; and (5) phthalic acid ester-contaminated soil can be remedied by degradation, phytoremediation, and adsorption.

show abstract

Section: Vertical Distribution Of Phthalic Acid Esters In Soilmentioning

confidence: 99%

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

He¹,

Gielen²,

Bolan³

et al. 2014

Agron. Sustain. Dev.

236

View full text Add to dashboard Cite

show abstract

“…Phthalates are not chemically but only physically bound to the polymer chains; hence, they may be leached into the environment and are ubiquitously found in air, water, soils, and sediments [13][14][15][16][17]. People exposure to PAEs may arise from toys, child-care articles, building materials, home furnishing, car interiors, clothing, medical devices, and foodcontact materials.…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of selected phthalates on mural painting surfaces under UV light irradiation

Barreca

Indelicato

Orecchio

et al. 2014

Microchemical Journal

View full text Add to dashboard Cite

The esters of phthalic acid are considered as hazardous pollutants due to their mutagenicity, carcinogenicity and are also classified as endocrine disruptor chemicals. Several compounds of this class of substances for decades, and probably even now, were used as softeners in water-based synthetic paintings. Surfaces and structures, such as house walls painted with phthalates based paintings, can be a concern to construction workers engaged in demolition, restore and paint removal activities if they are not protected from hazardous dust inhalation. In this paper we report the results of an investigation about phthalate ester degradation by direct UV irradiation at 254 nm. The results of kinetic parameters for PAE photodegradation are reported and it shows that k values for the single PAEs ranged from 0.221 to 0.737 h −1 . Moreover, the results indicate that photolysis is a successful way to remediate PEAs contaminated on mural painting.

show abstract

“…In particular, the traditional liquid-liquid extraction method is also dangerous to analysts because of the large volume of volatile organic solvent required. So in the last decades, the green liquid-liquid extraction method cloud point extraction (CPE) has been employed in analytical chemistry to 0039 preconcentrate organic compounds [6][7][8] and metal ions [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Determination of estrogens in water by HPLC–UV using cloud point extraction

Wang

Cai

et al. 2006

Talanta

135

View full text Add to dashboard Cite

A method based on cloud point extraction was developed to determine four kinds of estrogens: estriol (E3), estradiol (E2), estrone (E1), and progesterone (P) in water by high performance liquid chromatography separation and ultraviolet detection (HPLC-UV). The non-ionic surfactant Triton X-114 was chosen as extractant solvent. The parameters affecting extraction efficiency, such as concentrations of Triton X-114 and Na 2 SO 4 , equilibration temperature, equilibration time and centrifugation time were evaluated and optimized. Under the optimum conditions, preconcentration factors of 99 for E3, 73 for E2, 152 for E1 and 86 for P were obtained for 10 mL water sample. The detection of limitation was 0.23 ng mL −1 for E3, 0.32 ng mL −1 for E2, 0.25 ng mL −1 for E1 and 5.0 ng mL −1 for P. The proposed method was successfully applied to the determination of trace amount of estrogens in wastewater treatment plant (WWTP) effluent water and exposure water with 10 ng mL −1 E2 for toxicological study in our lab. For the case of WWTP effluent water samples, no estrogen was found. The accuracy of the proposed method was tested by recovery measurements of spiked samples and good recoveries of 81.2-99.5% were obtained.

show abstract

Occurrence and microbial degradation of phthalate esters in Taiwan river sediments

Cited by 346 publications

References 18 publications

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

Photodegradation of selected phthalates on mural painting surfaces under UV light irradiation

Determination of estrogens in water by HPLC–UV using cloud point extraction

Contact Info

Product

Resources

About