Assessment of pollution variability across the central part of the Büyük Menderes River (Turkey) using water physicochemical parameters and biomarker responses in the non-biting midge Chironomus riparius (Diptera: Chironomidae)

IF 1.3 4区环境科学与生态学 Q3 ECOLOGY Chemistry and Ecology Pub Date : 2022-11-23 DOI:10.1080/02757540.2022.2147515

Adile Sari

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Abstract

ABSTRACT This study aimed to examine the pollution level in the central part of the Büyük Menderes River (in both the main tributary and Çürüksu stream) in Denizli (Turkey) using water physicochemical parameters and biomarker responses in Chironomus riparius (Diptera: Chironomidae). In physicochemical parameter evaluations, Sığma, Korucuk, and Güzelköy stations were determined to have higher mean temperature, pH, salinity, conductivity, and total dissolved solids (TDS) values and lower dissolved oxygen (dO2) and saturated oxygen (sO2) values than Bekilli, Mahmutlu, and Sarayköy stations. In biomarker response evaluations, C. riparius larvae from Sarayköy, Sığma, Korucuk, and Güzelköy stations were found to exhibit inhibited acetylcholinesterase (AChE) activities (55%−68%) and elevated 7-ethoxyresorufin O-deethylase (EROD) activities (191%−281%), glutathione S-transferase (GST) activities (138%−187%), and metallothionein (MT) contents (155%−231%) when compared with the control values. This study proves that different stations are exposed to different pollution sources, the pollution level of a station varies depending on the season, and the stations on Çürüksu stream, among which Güzelköy appears to be the most contaminated, are exposed to more pollutants than those on the main tributary of the river.

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利用水体物理化学参数和生物标志物对土耳其b yy k Menderes河中部污染变动性的评价

摘要本研究旨在利用摇蚊（Diptera：摇蚊科）的水物理化学参数和生物标志物响应，检测土耳其Denizli的Büyük Menderes河中部（主要支流和Çrüksu河）的污染水平。在物理化学参数评估中，Sığma、Korucuk和Güzelköy站的平均温度、pH、盐度、电导率和总溶解固体（TDS）值高于Bekili、Mahmutlu和Saraykö伊站，溶解氧（dO2）和饱和氧（sO2）值较低。在生物标志物响应评估中，发现来自Sarayköy、Sığma、Korucuk和Güzelkö伊站的C.riparius幼虫表现出乙酰胆碱酯酶（AChE）活性被抑制（55%−68%）和7-乙氧基间苯二酚O-脱乙基酶（EROD）活性升高（191%−281%）、谷胱甘肽S-转移酶（GST）活性（138%−187%），金属硫蛋白（MT）含量（155%-231%）。这项研究证明，不同的站点暴露在不同的污染源中，一个站点的污染水平因季节而异，而Çürüksu河上的站点（其中Güzelköy似乎污染最严重）暴露在比该河主要支流上的站点更多的污染物中。

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来源期刊

Chemistry and Ecology 环境科学-环境科学

CiteScore

4.20

自引率

16.00%

发文量

审稿时长

3.7 months

期刊介绍： Chemistry and Ecology publishes original articles, short notes and occasional reviews on the relationship between chemistry and ecological processes. This journal reflects how chemical form and state, as well as other basic properties, are critical in their influence on biological systems and that understanding of the routes and dynamics of the transfer of materials through atmospheric, terrestrial and aquatic systems, and the associated effects, calls for an integrated treatment. Chemistry and Ecology will help promote the ecological assessment of a changing chemical environment and in the development of a better understanding of ecological functions.