干旱区生态环境知识资源中心(Arid): Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona

Arid

DOI	10.7717/peerj.15069
	Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona
	Hamdhani, Hamdhani; Eppehimer, Drew E.; Quanrud, David M.; Bogan, Michael T.
通讯作者	Hamdhani, H
来源期刊	PEERJ
ISSN	2167-8359
出版年	2023
卷号	11
英文摘要	Effluent-fed streams, which receive inputs from wastewater treatment plants, are becoming increasingly common across the globe as urbanization intensifies. In semi-arid and arid regions, where many natural streams have dried up due to over extraction of water, many streams rely completely on treated effluent to sustain baseflow during dry seasons. These systems are often thought of as 'second-class' or highly disturbed stream ecosystems, but they have the potential to serve as refuges for native aquatic biota if water quality is high, especially in areas where few natural habitats remain. In this study, we investigated seasonal and longitudinal water quality dynamics at multiple sites across six reaches of three effluent-dependent rivers in Arizona (USA) with the objective (1) to quantify changes in effluent water quality due to distance traveled and season/climate and (2) to qualify whether water quality conditions in these systems are sufficient to support native aquatic species. Study reaches ranged in length from 3 to 31 km and in geographic setting from low desert to montane conifer forest. We observed the lowest water quality conditions (e.g., elevated temperature and low dissolved oxygen) during the summer in low desert reaches, and significantly greater natural remediation of water quality in longer vs. shorter reaches for several factors, including temperature, dissolved oxygen and ammonia. Nearly all sites met or exceeded water quality conditions needed to support robust assemblages of native species across multiple seasons. However, our results also indicated that temperature (max 34.2 degrees C), oxygen levels (min 2.7 mg/L) and ammonia concentrations (max 5.36 mg/L N) may occasionally be stressful for sensitive taxa at sites closest to effluent outfalls. Water quality conditions may be a concern during the summer. Overall, effluent-dependent streams have the capacity to serve as refuges for native biota in Arizona, and they may become the only aquatic habitat available in many urbanizing arid and semi-arid regions.
英文关键词	Wastewater In-stream natural purification Wastewater treatment plant Aquatic organism Urban arid region
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000996307700005
WOS关键词	MUNICIPAL WASTE-WATER ; MACROINVERTEBRATE ASSEMBLAGES ; STREAM TEMPERATURE ; DISSOLVED-OXYGEN ; BACTERIAL COMMUNITY ; THERMAL TOLERANCE ; AMMONIA TOXICITY ; SEWAGE EFFLUENT ; FISH ; MANAGEMENT
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397971
推荐引用方式 GB/T 7714	Hamdhani, Hamdhani,Eppehimer, Drew E.,Quanrud, David M.,et al. Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona[J],2023,11.
APA	Hamdhani, Hamdhani,Eppehimer, Drew E.,Quanrud, David M.,&Bogan, Michael T..(2023).Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona.PEERJ,11.
MLA	Hamdhani, Hamdhani,et al."Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona".PEERJ 11(2023).