Article
Environmental Sciences
Pranaya Kumar Parida, Bijay Kumar Behera, Budheswar Dehury, Ajaya Kumar Rout, Dhruba Jyoti Sarkar, Anil Rai, Basanta Kumar Das, Trilochan Mohapatra
Summary: This study explored the microbial dynamics and functional potential of polluted sediments in the River Yamuna using whole-genome metagenomics. The results revealed differences in microbial community composition and identified various bacteria and fungi associated with pollution. Pathway analysis also highlighted genes involved in energy metabolism, xenobiotic degradation, and membrane transport. These findings provide important insights into microbial responses to pollution and can inform remediation strategies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Musarrat Parween, A. L. Ramanathan, N. Janardhana Raju
Summary: The study aimed at evaluating the environmental quality of the most polluted stretch of river Yamuna in Delhi, focusing on the presence of harmful substances in sediment and vegetable samples, and assessing the ecological and dietary health risks posed to the local population. The results indicated significant contamination of sediments with heavy metals, with some metals reaching levels of high concern, and high translocation factors in vegetables, suggesting bioaccumulation and potential health risks to consumers.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Mohd Asim, K. Nageswara Rao
Summary: The study evaluated the concentrations of heavy metals in the Yamuna River using the HPI approach. Results showed high pollution levels in the river water, exceeding permissible limits for drinking water. Significant variations in heavy metal concentrations between sampling sites were observed, likely due to industrial effluents and sewage wastes entering the river water through anthropogenic activities.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Biodiversity Conservation
Sana Rehman, Nawin Kumar Tiwary, Abdul Jamil Urfi
Summary: This study conducted occupancy modeling on resident birds in Delhi, finding that different polluted sections of the river affect the occupancy of common waterbirds, with certain species showing correlations with water quality and pollution levels. This information provides a baseline for studying future trends and suggests that some bird species can serve as indicators for contaminated water bodies.
Article
Green & Sustainable Science & Technology
Sudha Sippi, Dipteek Parmar
Summary: This study simulates the water quality of river Yamuna in Delhi after implementing different restoration measures. The results show that changing the width and depth of the river significantly improves water quality. However, closing the barrage does not lead to desirable results in terms of water quality improvement.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Soma Mishra, Pradeep Kumar, Indu Mehrotra, Manish Kumar
Summary: This study evaluates the prevalence of organic micropollutants (OMPs) in the Yamuna River in Delhi, India. Sixteen sampling campaigns were conducted to understand seasonal variations, with a focus on the monsoon season. The study found 55 OMPs in the monsoon season and 47 in the non-monsoon season. The OMPs detected in the river include pharmaceuticals, pesticides, endocrine-disrupting chemicals, phthalates, personal care products, fatty acids, food additives, hormones, and trace organics from hospital waste.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Nibedita Verma, Geeta Singh, Naved Ahsan
Summary: This study used multivariate techniques to analyze the spatiotemporal water quality variations in the Yamuna River Delhi stretch, which is heavily polluted with urban liquid waste. The analysis revealed increased concentrations of various pollutants downstream, indicating the influence of outfalling drains and diffused sources. The study provides valuable insights into the contamination sources and patterns in the urban river.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Environmental Sciences
Suriyah Akhter, Mohd Aadil Bhat, Sirajuddin Ahmed, Weqar Ahmad Siddiqi, Sayeed Ahmad, Hitesh Shrimal
Summary: The River Yamuna, a major source of potable water for Delhi, was found to contain antibiotics, with varying concentrations during different seasons. The presence of antibiotics in the river poses potential risks to the ecosystem and human health.
Article
Engineering, Environmental
Nilesh Kumar, Shriya Hans, Aradhana Srivastava
Summary: This study focused on the bio-enrichment of chromium (III) in the microalgae Spirulina sp. NCIM5143, demonstrating its ability to remove both Cr (III) and Cr (VI) ions effectively while producing valuable pigments. The use of red LED lights led to a complete removal of the heavy metals, with the added benefit of pigment production, without detrimental effects on the environment.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Nian-Wei Lee, Hsin-Yi Wang, Chung-Li Du, Tzu-Hsuen Yuan, Chung-Yu Chen, Chong-Jen Yu, Chang-Chuan Chan
Summary: Exposure to air-polluted heavy metals, particularly cadmium, may increase the risk of lung cancer. Accumulation of cadmium could be a risk factor for the occurrence of lung cancer and may result in poor prognosis in lung cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Ran Wen, Xiong Yang, Shuang He, Jian Wu, Hongmei Ge, Zheng Chi, Yafei Shi, Shulian Wang, Andrea R. Gerson, Kewu Pi
Summary: Sediments play a crucial role in the storage of heavy metals in river and lake waters, and their chemical makeup influences the movement of these elements within the ecosystem. Therefore, it is essential to remediate polluted sediments for the overall health of the ecological environment. This study proposes a simple method for extracting heavy metals from contaminated sediment using horizontal electroosmosis, and investigates the effect of different washing reagents and operational parameters. Citric acid and EDTA were found to be the most effective in removing Cd and Pb, respectively. After 13 days of electrokinetic washing, the removal ratio of Cd by citric acid was 77.0%, and that of Pb by EDTA was 88.3%. The decrease in various fractions of the heavy metals upon their removal from the polluted sediment was observed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Nibedita Verma, Geeta Singh, Naved Ahsan
Summary: This study aims to assess the impact of load reductions and flow augmentation on the assimilation yield of the Yamuna River in Delhi. The QUAL2kw model was used to predict river quality and was calibrated and confirmed under critical flow conditions. The results show that, under specific flow and load conditions, the desired water quality standards can be achieved.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Xiang-shu Ma, Leng Liu, Yi-chuan Fang, Xiao-long Sun
Summary: Through adsorption experiments on sediments and Cu-Zn in the estuary of Dianchi Lake, it was found that the changes in component content do not correlate with adsorption capacity, and the compound effects between components affect the adsorption amounts.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Environmental
Mansi Vaid, Komal Mehra, Kiranmay Sarma, Anshu Gupta
Summary: The Yamuna River in Delhi, India, is facing threats from pollution, particularly microplastics, heavy metals, and fecal coliforms. The abundance of microplastics increases as the river flows from Wazirabad barrage to Okhla barrage, with the highest levels found downstream to Najafgarh and Shahdara drain outfalls. The presence of co-contaminants like heavy metals and fecal coliforms is also a serious concern. The study emphasizes the importance of investigating the co-occurrence of these harmful pollutants and calls for similar research in other riverine regions.
Article
Public, Environmental & Occupational Health
Masaru Sakurai, Yasushi Suwazono, Kazuhiro Nogawa, Yuuka Watanabe, Miyuki Takami, Yasumitsu Ogra, Yu-Ki Tanaka, Hirotaro Iwase, Kayo Tanaka, Masao Ishizaki, Teruhiko Kido, Hideaki Nakagawa
Summary: Soil restoration reduced the levels of cadmium exposure and associated renal tubular dysfunction in residents of a former cadmium-polluted area.
ENVIRONMENTAL HEALTH AND PREVENTIVE MEDICINE
(2023)
