Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.scitotenv.2017.11.223 |
Potential urban runoff impacts and contaminant distributions in shoreline and reservoir environments of Lake Havasu, southwestern United States | |
Wilson, Doyle C. | |
通讯作者 | Wilson, Doyle C. |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT |
ISSN | 0048-9697 |
EISSN | 1879-1026 |
出版年 | 2018 |
卷号 | 621页码:95-107 |
英文摘要 | Heavy metal, nutrient, and hydrocarbon levels in and adjacent to Lake Havasu, a regionally significant water supply reservoir with a highly controlled, dynamic flow regime, are assessed in relation to possible stormwater runoff impacts from an arid urban center. Shallow groundwater and sediment analyses from ephemeral drainage (wash) mouths that convey stormwater runoff from Lake Havasu City, Arizona to the reservoir, provided contaminant control points and correlation ties with the reservoir environment. Fine-grain sediments tend to contain higher heavy metal concentrations whereas nutrients are more evenly distributed, except low total organic carbon levels from young wash mouth surfaces devoid of vegetation. Heavy metal and total phosphate sediment concentrations in transects from wash mouths into the reservoir have mixed and decreasing trends, respectively. Both series may indicate chemical depositional influences from urban runoff, yet no statistically significant concentration differences occur between specific wash mouths and corresponding offshore transects. Heavy metal pollution indices of all sediments indicate no discernible to minor contamination, indicating that runoff impacts are minimal. Nevertheless, several heavy metal concentrations from mid-reservoir sediment sites increase southward through the length of the reservoir. Continual significant water flow through the reservoir may help to disperse locally derived runoff particulates, which could mix and settle down gradient with chemical loads from upriver sources and local atmospheric deposition. Incorporating the shoreline environment with the reservoir investigation provides spatial continuity in assessing contaminant sources and distribution patterns. This is particularly acute in the investigation of energetic, flow-through reservoirs in which sources may be overlooked if solely analyzing the reservoir environment. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Heavy metals Nutrients Flow-through reservoir Pollution indices Lake Havasu |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000424196800010 |
WOS关键词 | HEAVY-METAL CONTAMINATION ; HARA BIOSPHERE RESERVE ; BOTTOM SEDIMENTS ; SURFACE SEDIMENTS ; GEOACCUMULATION INDEX ; ENRICHMENT FACTOR ; RIVER SEDIMENTS ; POLLUTION ; WATER ; ELEMENTS |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212933 |
作者单位 | Lake Havasu City Operat Dept, 900 London Bridge Rd, Lake Havasu City, AZ 86404 USA |
推荐引用方式 GB/T 7714 | Wilson, Doyle C.. Potential urban runoff impacts and contaminant distributions in shoreline and reservoir environments of Lake Havasu, southwestern United States[J],2018,621:95-107. |
APA | Wilson, Doyle C..(2018).Potential urban runoff impacts and contaminant distributions in shoreline and reservoir environments of Lake Havasu, southwestern United States.SCIENCE OF THE TOTAL ENVIRONMENT,621,95-107. |
MLA | Wilson, Doyle C.."Potential urban runoff impacts and contaminant distributions in shoreline and reservoir environments of Lake Havasu, southwestern United States".SCIENCE OF THE TOTAL ENVIRONMENT 621(2018):95-107. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Wilson, Doyle C.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Wilson, Doyle C.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Wilson, Doyle C.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。