Levels of PAHs in the Waters, Sediments, and Shrimps of Estero de Urias, an Estuary in Mexico, and Their Toxicological Effects

Joint Authors

Hoare, Armando
Alegria, Henry A.
Jaward, Foday M.
Galindo Reyes, Jose G.

Source

The Scientific World Journal

Issue

Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2012-09-10

Country of Publication

Egypt

No. of Pages

9

Main Subjects

Natural & Life Sciences (Multidisciplinary)
Medicine
Information Technology and Computer Science

Abstract EN

PAHs were measured in water, sediment, and shrimps of Estero de Urias, an estuary in Sinaloa, Mexico, during the rainy and dry seasons, and analyzed for eleven PAHs routinely detected in samples.

Phenanthrene was the most dominant congener in the water, sediment, and shrimp samples comprising about 38, 24, and 25%, respectively, of the eleven PAHs detected, followed by pyrene and naphthalene in water and sediment samples, and pyrene and fluorine in the shrimp samples.

Total PAH concentrations ranged from 9 to 347 ng/L in water, 27 to 418 ng/g in sediments, and 36 to 498 ng/g in shrimps.

The sources of contamination are closely related to human activities such as domestic and industrial discharge, automobile exhausts, and street runoff.

High concentrations were also measured during the rainy season and during the first quarter of the year.

Toxicity tests were also carried out, exposing fish embryos and juvenile shrimps to some of these PAHs.

Fish embryos exposed to PAHs showed exogastrulation, while juvenile shrimps showed significantly lower growth rates than controls.

DNA and protein alterations were also observed.

These toxicity tests indicate that PAH concentrations measured could be dangerous to some aquatic organisms, particularly during early stages of development.

American Psychological Association (APA)

Jaward, Foday M.& Alegria, Henry A.& Galindo Reyes, Jose G.& Hoare, Armando. 2012. Levels of PAHs in the Waters, Sediments, and Shrimps of Estero de Urias, an Estuary in Mexico, and Their Toxicological Effects. The Scientific World Journal،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-490597

Modern Language Association (MLA)

Jaward, Foday M.…[et al.]. Levels of PAHs in the Waters, Sediments, and Shrimps of Estero de Urias, an Estuary in Mexico, and Their Toxicological Effects. The Scientific World Journal No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-490597

American Medical Association (AMA)

Jaward, Foday M.& Alegria, Henry A.& Galindo Reyes, Jose G.& Hoare, Armando. Levels of PAHs in the Waters, Sediments, and Shrimps of Estero de Urias, an Estuary in Mexico, and Their Toxicological Effects. The Scientific World Journal. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-490597

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-490597