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Occurrence of selected estrogenic compounds and estrogenic activity in surface water and sediment of Langat River (Malaysia)

Overview of attention for article published in Environmental Monitoring & Assessment, June 2016
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Title
Occurrence of selected estrogenic compounds and estrogenic activity in surface water and sediment of Langat River (Malaysia)
Published in
Environmental Monitoring & Assessment, June 2016
DOI 10.1007/s10661-016-5438-5
Pubmed ID
Authors

Sarva Mangala Praveena, Tang Seok Lui, Nur’Aqilah Hamin, Siti Quistina Noorain Abdul Razak, Ahmad Zaharin Aris

Abstract

The occurrence and estrogenic activities of steroid estrogens, such as the natural estrone (E1), 17β estradiol (E2), and estriol (E3), as well as the synthetic 17α-ethynylestradiol (EE2), were investigated in eight sampling points along the Langat River (Malaysia). Surface water samples were collected at 0.5 m and surface sediment 0-5 cm from the river surface. Instrument analysis of steroid estrogens was determined by UPLC-ESI-MS with an ultra-performance liquid chromatograph (Perkin Elmer FX15) coupled to a Q Trap function mass spectrophotometer (model 3200: AB Sciex). Steroid estrogen concentrations were higher in the Langat River sediments than those in its surface water. In surface water, E1 was not detected in any sampling point, E2 was only detected in two midstream sampling points (range 0-0.004 ng/L), E3 in three sampling points (range 0-0.002 ng/L), and EE2 in four sampling points (range 0-0.02 ng/L). E1 and E2 were detected in sediments from all sampling points, E3 in five sampling points, while EE2 only in one midstream sample (3.29E-4 ng/g). Sewage treatment plants, farming waste, and agricultural activities particularly present midstream and downstream were identified as potential sources of estrogens. Estrogenic activity expressed as estradiol equivalents (EEQs) was below 1 ng/L in all samples for both surface water and sediment, indicating therefore a low potential estrogenic risk to the aquatic environment. Although the health risks are still uncertain for drinking water consumers exposed to low levels of steroid estrogen concentrations, Langat River water is unacceptable for direct drinking purposes without treatment. Further studies of endocrine disruptors in Malaysian waters are highly recommended.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 41 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 41 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 10 24%
Student > Bachelor 8 20%
Student > Ph. D. Student 4 10%
Researcher 3 7%
Student > Doctoral Student 2 5%
Other 8 20%
Unknown 6 15%
Readers by discipline Count As %
Environmental Science 16 39%
Agricultural and Biological Sciences 3 7%
Social Sciences 3 7%
Biochemistry, Genetics and Molecular Biology 3 7%
Chemistry 2 5%
Other 5 12%
Unknown 9 22%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 July 2016.
All research outputs
#10,920,231
of 12,322,982 outputs
Outputs from Environmental Monitoring & Assessment
#939
of 1,222 outputs
Outputs of similar age
#221,755
of 267,811 outputs
Outputs of similar age from Environmental Monitoring & Assessment
#31
of 43 outputs
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