Temporal and spatial variations of heavy metal concentrations in sediments of the tainan coastal area, anping harbor and tainan canal, Southwestern Taiwan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Heavy metal (Zn, Pb, Cu, Ni, Cr, Hg and As) concentrations were analyzed in surface sediments collected from the southwestern coast of Taiwan, the adjacent area of Anping Harbor, and the Tainan Canal. The results clearly indicate that smaller mean grain size and elevated mud content are observed close to Anping Harbor and fishing port. Grain-size normalized metal concentrations show large spatial variation, and metal distributions in the Tainan coastal sediments are clearly affected by terrestrial river inputs based on the locations of elevated metal concentrations. Heavy metal concentrations in the Tainan Canal sediments are significantly higher than those from the offshore area. Moreover, elevated Igeo (geo-accumulation index) values also indicate that the Canal sediments were either moderately or strongly contaminated with Zn and Hg. The varying metal concentrations in sediments near the mouth of Anping Harbor with data from December 2002 to January 2005, suggest no clear trends during phases I and II of dredging of the canal and no abnormal concentrations occurred during the dredging period. This result indicates that the metal contaminated sediments are trapped in the canal and then been removed during dredging.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalIrrigation and Drainage
Volume62
Issue numberS1
DOIs
Publication statusPublished - 2013 Oct 1

Fingerprint

canals (waterways)
harbors (waterways)
canal
temporal variation
spatial variation
Taiwan
harbor
heavy metals
heavy metal
sediments
metals
dredging
metal
sediment
grain size
coastal sediment
fishing
mud
coastal area
mouth

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Soil Science

Cite this

@article{b3710b712824484291e8b30e7a5e4ecd,
title = "Temporal and spatial variations of heavy metal concentrations in sediments of the tainan coastal area, anping harbor and tainan canal, Southwestern Taiwan",
abstract = "Heavy metal (Zn, Pb, Cu, Ni, Cr, Hg and As) concentrations were analyzed in surface sediments collected from the southwestern coast of Taiwan, the adjacent area of Anping Harbor, and the Tainan Canal. The results clearly indicate that smaller mean grain size and elevated mud content are observed close to Anping Harbor and fishing port. Grain-size normalized metal concentrations show large spatial variation, and metal distributions in the Tainan coastal sediments are clearly affected by terrestrial river inputs based on the locations of elevated metal concentrations. Heavy metal concentrations in the Tainan Canal sediments are significantly higher than those from the offshore area. Moreover, elevated Igeo (geo-accumulation index) values also indicate that the Canal sediments were either moderately or strongly contaminated with Zn and Hg. The varying metal concentrations in sediments near the mouth of Anping Harbor with data from December 2002 to January 2005, suggest no clear trends during phases I and II of dredging of the canal and no abnormal concentrations occurred during the dredging period. This result indicates that the metal contaminated sediments are trapped in the canal and then been removed during dredging.",
author = "Ping Chen and Liu, {Ta Kang}",
year = "2013",
month = "10",
day = "1",
doi = "10.1002/ird.1788",
language = "English",
volume = "62",
pages = "1--9",
journal = "Irrigation and Drainage",
issn = "1531-0353",
publisher = "John Wiley and Sons Ltd",
number = "S1",

}

TY - JOUR

T1 - Temporal and spatial variations of heavy metal concentrations in sediments of the tainan coastal area, anping harbor and tainan canal, Southwestern Taiwan

AU - Chen, Ping

AU - Liu, Ta Kang

PY - 2013/10/1

Y1 - 2013/10/1

N2 - Heavy metal (Zn, Pb, Cu, Ni, Cr, Hg and As) concentrations were analyzed in surface sediments collected from the southwestern coast of Taiwan, the adjacent area of Anping Harbor, and the Tainan Canal. The results clearly indicate that smaller mean grain size and elevated mud content are observed close to Anping Harbor and fishing port. Grain-size normalized metal concentrations show large spatial variation, and metal distributions in the Tainan coastal sediments are clearly affected by terrestrial river inputs based on the locations of elevated metal concentrations. Heavy metal concentrations in the Tainan Canal sediments are significantly higher than those from the offshore area. Moreover, elevated Igeo (geo-accumulation index) values also indicate that the Canal sediments were either moderately or strongly contaminated with Zn and Hg. The varying metal concentrations in sediments near the mouth of Anping Harbor with data from December 2002 to January 2005, suggest no clear trends during phases I and II of dredging of the canal and no abnormal concentrations occurred during the dredging period. This result indicates that the metal contaminated sediments are trapped in the canal and then been removed during dredging.

AB - Heavy metal (Zn, Pb, Cu, Ni, Cr, Hg and As) concentrations were analyzed in surface sediments collected from the southwestern coast of Taiwan, the adjacent area of Anping Harbor, and the Tainan Canal. The results clearly indicate that smaller mean grain size and elevated mud content are observed close to Anping Harbor and fishing port. Grain-size normalized metal concentrations show large spatial variation, and metal distributions in the Tainan coastal sediments are clearly affected by terrestrial river inputs based on the locations of elevated metal concentrations. Heavy metal concentrations in the Tainan Canal sediments are significantly higher than those from the offshore area. Moreover, elevated Igeo (geo-accumulation index) values also indicate that the Canal sediments were either moderately or strongly contaminated with Zn and Hg. The varying metal concentrations in sediments near the mouth of Anping Harbor with data from December 2002 to January 2005, suggest no clear trends during phases I and II of dredging of the canal and no abnormal concentrations occurred during the dredging period. This result indicates that the metal contaminated sediments are trapped in the canal and then been removed during dredging.

UR - http://www.scopus.com/inward/record.url?scp=84885113513&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885113513&partnerID=8YFLogxK

U2 - 10.1002/ird.1788

DO - 10.1002/ird.1788

M3 - Article

AN - SCOPUS:84885113513

VL - 62

SP - 1

EP - 9

JO - Irrigation and Drainage

JF - Irrigation and Drainage

SN - 1531-0353

IS - S1

ER -