Occurrence and risk assessment of selected pharmaceuticals in water and sediments of Usuma Dam, Abuja, Nigeria

Ilechukwu, Ifenna; Okonkwo, Chioma Joy; Olusina, Tolulope Abisola; Mpock, Jarvis Abel; Ilechukwu, Chibuamam

doi:10.1080/03067319.2021.1928099

Cited by 3 publications

(3 citation statements)

References 80 publications

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“…The ratio of RQ MEC/PNEC and RQ STU based on acute and chronic toxicity reached values equal to 1 in almost all sampling sites. Similar results were found in other studies concerning the risk assessment of these antibiotic compounds in surface water [86][87][88][89][90]. The application of the concept of mixture risk toxicity decreases deviations in the evaluation of toxicity and may more accurately predict the potential effects of antibiotics on aquatic organisms [91].…”

Section: Environmental Risk Assessmentsupporting

confidence: 86%

Screening of Commonly Used Antibiotics in Fresh and Saltwater Samples Impacted by Aquacultures: Analytical Methodology, Occurrence and Environmental Risk Assessment

Boti,

Toli,

Efthymiou

et al. 2023

Sustainability

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Traditionally, antibiotics have been used to treat human and animal diseases caused by pathogenic bacteria. The aquaculture industry, which is massively expanding currently, also makes use of several antibiotic classes, resulting in potential antibiotic residues in the surrounding aquatic environment, as well as the cultured products raising bacterial resistance. The aim of this study was the optimization, validation, and application of a solid-phase extraction (SPE) method in combination with liquid chromatography (LC)-LTQ/Orbitrap mass spectrometry in order to determine the most commonly used antibiotics in waters sampled from fish farms, both saltwater and freshwater, located in Greece. Under optimum conditions, the method was validated, achieving recoveries in the range of 57.7% (for sulfamethoxazole in river water) to 95.8% (for florfenicol in river water). The method quantification limits were within the range of 0.25 and 10 ng·L−1 in all cases, with relative standard deviations (RSDs) < 15.9%. The application of the proposed methodology revealed the presence of oxytetracycline and trimethoprim traces. Finally, an assessment of the environmental risk posed by the detected antibiotics was performed, calculating either the risk quotient (RQ) for three trophic levels (8.013 × 10−6 < RQ < 0.496) or the mixture RQ (0.005 < RQ < 0.682), proving that in all cases, the risk was medium to low.

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Section: Environmental Risk Assessmentsupporting

confidence: 86%

Screening of Commonly Used Antibiotics in Fresh and Saltwater Samples Impacted by Aquacultures: Analytical Methodology, Occurrence and Environmental Risk Assessment

Boti,

Toli,

Efthymiou

et al. 2023

Sustainability

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“…Among the PHACs are ofloxacin, norfloxacin, sulfamethoxazole, erythromycin, carbamazepine, roxithromycin, diclofenac, ciprofloxacin, caffeine, ibuprofen, metoprolol, bezafibrate, salicylic acid, and naproxen, while the EDCs include estrone and bisphenol A. The high ecological risks of these ECs have also been extensively documented in other studies (e.g., ofloxacin [26][27][28][29], norfloxacin [26,28,30,31], sulfamethoxazole [32][33][34], erythromycin [35][36][37], carbamazepine [32,[38][39][40][41], roxithromycin [42][43][44][45], diclofenac [46][47][48], ciprofloxacin [49,50], caffeine [51][52][53][54], ibuprofen [38,[55][56][57], metoprolol [58,59], bezafibrate [60,61], salicylic acid [62], naproxen [63][64][65], estrone [66][67]…”

Section: Riskmentioning

confidence: 99%

Emerging Contaminants in the Effluent of Wastewater Should Be Regulated: Which and to What Extent?

Yang,

Bu,

Shi

et al. 2024

Toxics

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Effluent discharged from urban wastewater treatment plants (WWTPs) is a major source of emerging contaminants (ECs) requiring effective regulation. To this end, we collected discharge datasets of pharmaceuticals (PHACs) and endocrine-disrupting chemicals (EDCs), representing two primary categories of ECs, from Chinese WWTP effluent from 2012 to 2022 to establish an exposure database. Moreover, high-risk ECs’ long-term water quality criteria (LWQC) were derived using the species sensitivity distribution (SSD) method. A total of 140 ECs (124 PHACs and 16 EDCs) were identified, with concentrations ranging from N.D. (not detected) to 706 μg/L. Most data were concentrated in coastal regions and Gansu, with high ecological risk observed in Gansu, Hebei, Shandong, Guangdong, and Hong Kong. Using the assessment factor (AF) method, 18 high-risk ECs requiring regulation were identified. However, only three of them, namely carbamazepine, ibuprofen, and bisphenol-A, met the derivation requirements of the SSD method. The LWQC for these three ECs were determined as 96.4, 1010, and 288 ng/L, respectively. Exposure data for carbamazepine and bisphenol-A surpassed their derived LWQC, indicating a need for heightened attention to these contaminants. This study elucidates the occurrence and risks of ECs in Chinese WWTPs and provides theoretical and data foundations for EC management in urban sewage facilities.

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“…Elsewhere, the availability of data on contamination of water resources by pharmaceuticals has been increasing [11][12][13][14]. In Africa, some studies on pharmaceuticals have been conducted in South Africa [15][16][17], Kenya [18][19][20] and Nigeria [3,21,22]. This review will focus on antibiotics and contraceptive drugs due to their wider use in municipal areas of developing countries.…”

Section: Pharmaceuticalsmentioning

confidence: 99%

Pollutants of Emerging Concern in Urban Wastewater Impacted Aquatic Environments and Management Recommendations

Siziba¹,

Sero²

2023

Environmental Sciences

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Contamination of aquatic environments by pollutants of emerging concern (PEC) creates new public health and environmental threats. Over the years, Africa has struggled to adequately treat wastewater before discharged into the environment. The situation is expected to be worsened by the more challenging to treat PEC like pharmaceuticals, endocrine disrupters, microplastics, surfactants, cyanotoxins, radioactive and flame retardants. Generally, the pollution of aquatic environments will have serious negative impacts on organisms that depend on the affected sources. Elsewhere, a number of research studies have reported the occurrence of these pollutants and in some cases exceeding the recommended levels. However, in Africa and other developing countries, a few studies have focused on PEC in aquatic resources. In this review, discussions are centered on the: (i) occurrence of PEC in African aquatic environments, (ii) potential risks to aquatic ecosystems and human health, and (iii) current chemical and biological monitoring techniques. There is need to include PEC in the research studies and routine environmental monitoring programmes particularly before the urban wastewater is discharged into the environment. Passive biomonitoring through using biomarkers like oxidative stress proteins and gonadal histopathology may be more informative and cheaper way of monitoring PEC than chemical analysis.

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Occurrence and risk assessment of selected pharmaceuticals in water and sediments of Usuma Dam, Abuja, Nigeria

Cited by 3 publications

References 80 publications

Screening of Commonly Used Antibiotics in Fresh and Saltwater Samples Impacted by Aquacultures: Analytical Methodology, Occurrence and Environmental Risk Assessment

Screening of Commonly Used Antibiotics in Fresh and Saltwater Samples Impacted by Aquacultures: Analytical Methodology, Occurrence and Environmental Risk Assessment

Emerging Contaminants in the Effluent of Wastewater Should Be Regulated: Which and to What Extent?

Pollutants of Emerging Concern in Urban Wastewater Impacted Aquatic Environments and Management Recommendations

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