Distribution, Enrichment, Accumulation, and Potential Ecological Effect of Lead in the Sediment of Jen-Gen River Estuary, Taiwan

2012 ◽  
Vol 599 ◽  
pp. 533-536
Author(s):  
Cheng Di Dong ◽  
Chih Feng Chen ◽  
Chiu Wen Chen
Keyword(s):  
Municipal Wastewater ◽  
Sediment Quality ◽  
River Estuary ◽  
Potential Effect ◽  
Ecological Effect ◽  
River Bank ◽  
Biological Damage ◽  
Sources Of Pollution ◽  
Quality Guidelines ◽  
Severe Degree

This study was conducted using the data collected at the estuary of Jen-Gen River to investigate and analyze Lead (Pb) contained in the sediments, and to evaluate the accumulation of Pb and the degree of its potential effect. The results show that samples collected at all monitoring stations near the mouth of Jen-Gen River contain 31–87 mg/kg of Pb with a mean of 65±17 mg/kg. The spatial distribution of Pb reveals that the Pb concentration is relatively high in the river estuary region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor (EF) analysis imply that the sediments can be characterized as moderately severe to severe degree of Pb enrichment. Results of geo-accumulation index (Igeo) analysis indicate that the sediments can be characterized as moderate to moderately strong degree of Pb accumulation. Base on the comparison with sediment quality guidelines (SQGs), the concentrations of Pb in the sediments of Jen-Gen River estuary may cause acute biological damage.

Enrichment and Accumulation of Zinc in the Sediment of Jen-Gen River Estuary, Taiwan

2012 ◽  
Vol 610-613 ◽  
pp. 2693-2696
Author(s):  
Cheng Di Dong ◽  
Chih Feng Chen ◽  
Chiu Wen Chen
Keyword(s):  
Spatial Distribution ◽  
Municipal Wastewater ◽  
Sediment Quality ◽  
River Estuary ◽  
River Mouth ◽  
River Bank ◽  
Biological Damage ◽  
Sources Of Pollution ◽  
Quality Guidelines ◽  
Accumulation Index

The spatial distribution, enrichment, and accumulation of zinc (Zn) in the surface sediments of Jen-Gen River estuary, Taiwan, were studied. Results show that samples collected from 11 stations near the estuary of Jen-Gen River contain 221–627 mg/kg of Zn with average of 502±114 mg/kg. The spatial distribution of Zn reveals is relatively high in the river mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Enrichment factor analysis indicates that the sediments of Jen-Gen River estuary were severe enrichment with Zn. Geo-accumulation index analysis indicates that the sediments of Jen-Gen River estuary were moderately strong accumulated with Zn. Base on the comparison with sediment quality guidelines (SQGs), the concentrations of Zn in the sediments of Jen-Gen River estuary may cause acute biological damage.

Evaluation of Chromium Contamination in the Surface Sediments of Canon River Estuary, Taiwan

2012 ◽  
Vol 550-553 ◽  
pp. 2117-2120 ◽  
Author(s):  
Chiu Wen Chen ◽  
Chih Feng Chen ◽  
Cheng Di Dong
Keyword(s):  
Municipal Wastewater ◽  
Sediment Quality ◽  
River Estuary ◽  
Moderate Degree ◽  
River Bank ◽  
Biological Damage ◽  
Sources Of Pollution ◽  
Quality Guidelines ◽  
Accumulation Index ◽  
Geo Accumulation Index

This study was conducted using the data collected at the Canon River estuary, Taiwan to investigate and analyze Chromium (Cr) contained in the sediments, and to evaluate the enrichment and accumulation of Cr. Results of laboratory analyses show that concentrations of Cr in the sediments are between 27 and 192 mg/kg with an average of 111±52 mg/kg. The spatial distribution of Cr reveals is relatively high in the boundary of the river estuary region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor and geo-accumulation index analyses imply that the sediments collected from the river estuary can be characterized between no enrichment to moderate degree enrichment and between none to medium accumulation of Cr, respectively. Base on the comparison with sediment quality guidelines, the sediments Cr concentrations may cause acute biological damage. The results can provide regulatory valuable information to be referenced for developing future strategies to renovate and manage river estuary and harbor.

Evaluation of the Status of Copper Contamination of Surface Sediments of Jen-Gen River Estuary, Taiwan

2013 ◽  
Vol 300-301 ◽  
pp. 1381-1384
Author(s):  
Cheng Di Dong ◽  
Yao Ting Tu ◽  
Chiu Wen Chen ◽  
Chih Ming Kao ◽  
Chih Feng Chen
Keyword(s):  
Municipal Wastewater ◽  
Surface Sediments ◽  
Biological Effects ◽  
Sediment Quality ◽  
River Estuary ◽  
River Mouth ◽  
Moderate Degree ◽  
River Bank ◽  
Biological Damage ◽  
Severe Degree

Major objectives of this study are to evaluation the enrichment, accumulation, and potential biological effects of copper (Cu) in the surface sediments of Jen-Gen River estuary, Taiwan. Eleven sampling locations were installed near the mouth of Jen-Gen River to collect sediment samples for analyzing Cu. Results of laboratory analyses show that concentrations of Cu in the sediments are between 67 and 278 mg/kg with an average of 181±61 mg/kg. The spatial distribution of Cu reveals that the Cu concentration is relatively high in the boundary of the river estuary. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor (EF) analysis imply that the sediments can be characterized as minor to moderately severe degree of Cu enrichment. Results of geo-accumulation index (Igeo) analysis indicate that the sediments can be characterized as none to moderate degree of Cu accumulation. Base on the comparison with sediment quality guidelines (SQGs), the concentrations of Cu in Jen-Gen River mouth sediments may cause acute biological damage.

Evaluation of Zinc Contamination in the Sediments of Salt River Mouth, Taiwan

2012 ◽  
Vol 178-181 ◽  
pp. 893-896
Author(s):  
Chun Ting Chen ◽  
Chiu Wen Chen ◽  
Chih Feng Chen ◽  
Cheng Di Dong ◽  
Ming Sheng Ko ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Sediment Quality ◽  
River Mouth ◽  
River Bank ◽  
Biological Damage ◽  
Sources Of Pollution ◽  
Quality Guidelines ◽  
Salt River ◽  
Accumulation Index ◽  
Zinc Contamination

The distribution, enrichment, and accumulation of Zinc (Zn) in the surface sediments of Salt River mouth, Taiwan, were studied. Results show that samples collected from nine stations near the mouth of Salt River contain 440–1,820 mg/kg of Zn with average of 951±811 mg/kg. The spatial distribution of Zn reveals is relatively high in the river mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Enrichment factor analysis indicates that the sediments of Salt River mouth were moderately severe enrichment with Zn. Geo-accumulation index analysis indicates that the sediments of Salt River mouth were strongly accumulated with Zn. Base on the comparison with sediment quality guidelines (SQGs), the concentrations of Zn in the sediments of Salt River mouth may cause acute biological damage.

Distribution and Contamination of Chromium in the Surface Sediments of Salt River Estuary, Taiwan

2013 ◽  
Vol 339 ◽  
pp. 717-720
Author(s):  
Cheng Di Dong ◽  
Chih Feng Chen ◽  
Yi Kuo Chang ◽  
Chiu Wen Chen
Keyword(s):  
Ecological Risk ◽  
Municipal Wastewater ◽  
Risk Index ◽  
River Estuary ◽  
Potential Ecological Risk ◽  
Moderate Degree ◽  
River Bank ◽  
Sources Of Pollution ◽  
Salt River ◽  
Severe Degree

Major objectives of this study are to evaluation the pollution and potential ecological risk of chromium (Cr) in the sediments of Salt River estuary, Taiwan. Nine monitoring stations were installed near the estuary of Salt River to collect sediment samples for analyzing Cr. Results of laboratory analyses show that contents of Cr in the sediments are between 32 and 79 mg/kg with an average of 58±17 mg/kg. The spatial distribution of Cr reveals that the Cr concentration is relatively high near the boundary of the river estuary, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor analysis imply that the sediments can be characterized as minor to moderately severe degree of Cr enrichment. Results of geo-accumulation index analysis indicate that the sediments can be characterized as moderate degree of Cr accumulation. Results of potential ecological risk index indicate that the sediments at Salt River estuary have low ecological potential risk.

Evaluation of Zinc Contamination in the Sediments of Canon River Mouth, Taiwan

2012 ◽  
Vol 468-471 ◽  
pp. 1767-1770 ◽  
Author(s):  
Chiu Wen Chen ◽  
Chih Feng Chen ◽  
Cheng Di Dong
Keyword(s):  
Potential Risk ◽  
Municipal Wastewater ◽  
Risk Index ◽  
River Mouth ◽  
Potential Ecological Risk ◽  
River Bank ◽  
Sources Of Pollution ◽  
Accumulation Index ◽  
Severe Degree ◽  
Zinc Contamination

This study was conducted using the data collected at the mouth of Canon River to investigate and analyze zinc (Zn) contained in the sediments, and to evaluate the accumulation of Zn and the degree of its potential risk. The results show that samples collected at all monitoring stations near the mouth of Canon River contain 358–3,365 mg/kg of Zn with average of 1,878±1,015 mg/kg. The spatial distribution of Zn reveals that the Zn concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. The enrichment factor (EF) and geo-accumulation index (Igeo) indicate that the sedimentation at Canon River mouth has the moderately severe to extremely severe degree accumulation and moderate to very strongly accumulation of Zn. However, the potential ecological risk index indicates that the sedimentation at Canon River mouth has the low to moderate ecological potential risk.

Enrichment, Accumulation, and Potential Ecological Risk of Lead in the Sediments of Love River Mouth, Taiwan

2012 ◽  
Vol 468-471 ◽  
pp. 1570-1573 ◽  
Author(s):  
Chiu Wen Chen ◽  
Chih Feng Chen ◽  
Cheng Di Dong
Keyword(s):  
Ecological Risk ◽  
Municipal Wastewater ◽  
Risk Index ◽  
River Mouth ◽  
Potential Ecological Risk ◽  
River Bank ◽  
Ecological Risk Index ◽  
Sources Of Pollution ◽  
Accumulation Index ◽  
Severe Degree

Major objectives of this study are to evaluation the enrichment, accumulation, and potential ecological risk of lead (Pb) in the sediments of Love River mouth, Taiwan. Ten monitoring stations were installed near the mouth of Love River to collect sediment samples for analyzing Pb. Results of laboratory analyses show that concentrations of Pb in the sediments are between 44 and 105 mg/kg with an average of 74±19 mg/kg. The spatial distribution of Pb reveals that the Pb concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor (EF) analysis imply that the sediments can be characterized as moderately severe to severe degree of Pb enrichment. Results of geo-accumulation index (Igeo) analysis indicate that the sediments can be characterized as moderate to moderately strong degree of Pb accumulation. However, results of potential ecological risk index indicate that the sedimentation at Love River mouth has the low ecological potential risk.

Cadmium Contamination in the Sediments of Love River Mouth, Taiwan

2012 ◽  
Vol 178-181 ◽  
pp. 988-991 ◽  
Author(s):  
Cheng Di Dong ◽  
Chih Feng Chen ◽  
Chiu Wen Chen
Keyword(s):  
Ecological Risk ◽  
Municipal Wastewater ◽  
Risk Index ◽  
River Mouth ◽  
Potential Ecological Risk ◽  
River Bank ◽  
Ecological Risk Index ◽  
Sources Of Pollution ◽  
Accumulation Index ◽  
Severe Degree

Major objectives of this study are to evaluation the enrichment, accumulation, and potential ecological risk of cadmium (Cd) in the sediments of Love River mouth, Taiwan. Ten monitoring stations were installed near the mouth of Love River to collect sediment samples for analyzing Cd. Results of laboratory analyses show that contents of Cd in the sediments are between 0.27 and 1.25 mg/kg with an average of 0.74±0.33 mg/kg. The spatial distribution of Cd reveals that the Cd concentration is relatively high near the boundary of the river mouth, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor analysis imply that the sediments can be characterized as minor to severe degree of Cd enrichment. Results of geo-accumulation index analysis indicate that the sediments can be characterized as none to moderately strong degree of Cd accumulation. Results of potential ecological risk index indicate that the sediments at Love River mouth has moderate to high ecological potential risk.

Evaluation of Cadmium Contamination in the Sediments of Northern Kaohsiung Harbor, Taiwan

2013 ◽  
Vol 300-301 ◽  
pp. 1334-1339
Author(s):  
Li Chen Chang ◽  
Chih Feng Chen ◽  
Chiu Wen Chen ◽  
Cheng Di Dong
Keyword(s):  
Ecological Risk ◽  
Municipal Wastewater ◽  
Risk Index ◽  
Sediment Quality ◽  
River Mouth ◽  
Potential Ecological Risk ◽  
River Bank ◽  
Ecological Risk Index ◽  
Accumulation Index ◽  
Severe Degree

The distribution, enrichment, accumulation, and potential ecological risk of Cadmium (Cd) in the surface sediments of northern Kaohsiung Harbor, Taiwan were investigated. Sediment samples from 12 locations of Kaohsiung Harbor were collected and characterized for Cd, aluminum, water content, organic matter, total nitrogen, total phosphorous, total grease, and grain size. Results showed that the Cd concentrations varied from 0.25–2.28 mg/kg with an average of 0.58±0.58 mg/kg. The spatial distribution of Cd reveals that the Cd concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor entrance region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of Cd pollution. Results from the enrichment factor and geo-accumulation index analyses imply that the sediments collected from the river mouth can be characterized between moderate and severe degree enrichment and between moderate and moderate to strong accumulation of Cd, respectively. Results of potential ecological risk index indicate that the sediment has higher to high ecological potential risk. Therefore, a strategy for effective controlling and managing river upstream pollution needs to be immediately implemented in order to improve the sediment quality and alleviate the ecological risk.

Distribution and Potential Risk of Copper in Surface Sediments of Anping Harbor, Taiwan

2013 ◽  
Vol 376 ◽  
pp. 463-467
Author(s):  
Cheng Di Dong ◽  
Chih Feng Chen ◽  
Chiu Wen Chen
Keyword(s):  
Potential Risk ◽  
Municipal Wastewater ◽  
Risk Index ◽  
River Mouth ◽  
Potential Ecological Risk ◽  
River Bank ◽  
Ecological Risk Index ◽  
Sources Of Pollution ◽  
Accumulation Index ◽  
Geo Accumulation Index

This study was conducted using the data collected at the Anping Harbor, Taiwan to investigate and analyze Copper (Cu) contained in the sediments, and to evaluate the accumulation of Cr and the degree of its potential risk. The results show that samples collected at ten monitoring points contain 23380 mg/kg of Cu with an average of 114±101 mg/kg. The spatial distribution of Cu reveals that the Cu concentration is relatively high in the Bamboo River mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor and geo-accumulation index analyses imply that the Bamboo River mouth sediments can be characterized as severe enrichment and moderate to strong accumulation of Cu, respectively. However, results of potential ecological risk index indicate that the sediment has low ecological potential risk. The results can provide valuable information to developing future strategies for the management of river mouth and harbor.

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