Mercury Release to Aquatic Environments from Anthropogenic Sources in China from 2001 to 2012

2016 ◽  
Vol 50 (15) ◽  
pp. 8169-8177 ◽  
Author(s):  
Maodian Liu ◽  
Wei Zhang ◽  
Xuejun Wang ◽  
Long Chen ◽  
Huanhuan Wang ◽  
...  
Keyword(s):  
Anthropogenic Sources ◽  
Aquatic Environments ◽  
Mercury Release

scholarly journals The Role of Gulls as Reservoirs of Antibiotic Resistance in Aquatic Environments: A Scoping Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Danae Zeballos-Gross ◽  
Zulma Rojas-Sereno ◽  
Marília Salgado-Caxito ◽  
Patricia Poeta ◽  
Carmen Torres ◽  
...  
Keyword(s):  
Current Knowledge ◽  
Anthropogenic Sources ◽  
Future Research ◽  
Resistant Bacteria ◽  
Aquatic Environments ◽  
Antibiotic Resistant ◽  
Domestic Species ◽  
Sampling Protocols ◽  
Longitudinal Sampling

The role of wildlife with long-range dispersal such as gulls in the global dissemination of antimicrobial resistance (AMR) across natural and anthropogenic aquatic environments remains poorly understood. Antibiotic-resistant bacteria have been detected in resident and migratory gulls worldwide for more than a decade, suggesting gulls as either sentinels of AMR pollution from anthropogenic sources or independent reservoirs that could maintain and disperse AMR across aquatic environments. However, confirming either of these roles remains challenging and incomplete. In this review, we present current knowledge on the geographic regions where AMR has been detected in gulls, the molecular characterization of resistance genes, and the evidence supporting the capacity of gulls to disperse AMR across regions or countries. We identify several limitations of current research to assess the role of gulls in the spread of AMR including most studies not identifying the source of AMR, few studies comparing bacteria isolated in gulls with other wild or domestic species, and almost no study performing longitudinal sampling over a large period of time to assess the maintenance and dispersion of AMR by gulls within and across regions. We suggest future research required to confirm the role of gulls in the global dispersion of AMR including the standardization of sampling protocols, longitudinal sampling using advanced satellite tracking, and whole-genome sequencing typing. Finally, we discuss the public health implications of the spread of AMR by gulls and potential solutions to limit its spread in aquatic environments.

scholarly journals Heavy Metal Accumulation in Rice and Aquatic Plants Used as Human Food: A General Review

Toxics ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 360
Author(s):  
Mohammad Main Uddin ◽  
Mohamed Cassim Mohamed Zakeel ◽  
Junaida Shezmin Zavahir ◽  
Faiz M. M. T. Marikar ◽  
Israt Jahan
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Human Health ◽  
Aquatic Plants ◽  
Aquatic Ecosystems ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Mitigation Strategies ◽  
Anthropogenic Sources ◽  
Aquatic Environments

Aquatic ecosystems are contaminated with heavy metals by natural and anthropogenic sources. Whilst some heavy metals are necessary for plants as micronutrients, others can be toxic to plants and humans even in trace concentrations. Among heavy metals, cadmium (Cd), arsenic (As), chromium (Cr), lead (Pb), and mercury (Hg) cause significant damage to aquatic ecosystems and can invariably affect human health. Rice, a staple diet of many nations, and other aquatic plants used as vegetables in many countries, can bioaccumulate heavy metals when they grow in contaminated aquatic environments. These metals can enter the human body through food chains, and the presence of heavy metals in food can lead to numerous human health consequences. Heavy metals in aquatic plants can affect plant physicochemical functions, growth, and crop yield. Various mitigation strategies are being continuously explored to avoid heavy metals entering aquatic ecosystems. Understanding the levels of heavy metals in rice and aquatic plants grown for food in contaminated aquatic environments is important. Further, it is imperative to adopt sustainable management approaches and mitigation mechanisms. Although narrowly focused reviews exist, this article provides novel information for improving our understanding about heavy metal accumulation in rice and aquatic plants, addressing the gaps in literature.

Highly Resolved Inventory of Mercury Release to Water from Anthropogenic Sources in China

2021 ◽  
Author(s):  
Kaiyun Liu ◽  
Qingru Wu ◽  
Shuxiao Wang ◽  
Daiwei Ouyang ◽  
Zhijian Li ◽  
...  
Keyword(s):  
Anthropogenic Sources ◽  
Mercury Release

Eco-hydrology: Plants and Water in Terrestrial and Aquatic Environments. Baird, A.J. and Wilby, R.L. (eds) (1999)

2000 ◽  
Vol 88 (6) ◽  
pp. 1095-1097
Author(s):  
R.M.M. Crawford
Keyword(s):  
Aquatic Environments

Disinfectants' Effect on Mercury Release From Amalgam

2006 ◽  
Vol 2006 ◽  
pp. 293-294
Author(s):  
M. Spencer
Keyword(s):  
Mercury Release

Habitat fragmentation causes collapse of kelp recruitment

2020 ◽  
Vol 648 ◽  
pp. 111-123
Author(s):  
C Layton ◽  
MJ Cameron ◽  
M Tatsumi ◽  
V Shelamoff ◽  
JT Wright ◽  
...  
Keyword(s):  
Habitat Fragmentation ◽  
Patch Size ◽  
Life Stage ◽  
Extended Period ◽  
Anthropogenic Disturbances ◽  
Anthropogenic Sources ◽  
Kelp Forests ◽  
Natural Disturbances ◽  
Short Term ◽  
Turf Algae

Kelp forests in many regions are experiencing disturbance from anthropogenic sources such as ocean warming, pollution, and overgrazing. Unlike natural disturbances such as storms, anthropogenic disturbances often manifest as press perturbations that cause persistent alterations to the environment. One consequence is that some kelp forests are becoming increasingly sparse and fragmented. We manipulated patch size of the kelp Ecklonia radiata over 24 mo to simulate persistent habitat fragmentation and assessed how this influenced the demography of macro- and microscopic juvenile kelp within the patches. At the beginning of the experiment, patch formation resulted in short-term increases in E. radiata recruitment in patches <1 m2. However, recruitment collapsed in those same patches over the extended period, with no recruits observed after 15 mo. Experimental transplants of microscopic and macroscopic juvenile sporophytes into the patches failed to identify the life stage impacted by the reductions in patch size, indicating that the effects may be subtle and require extended periods to manifest, and/or that another life stage is responsible. Abiotic measurements within the patches indicated that kelp were less able to engineer the sub-canopy environment in smaller patches. In particular, reduced shading of the sub-canopy in smaller patches was associated with proliferation of sediments and turf algae, which potentially contributed to the collapse of recruitment. We demonstrate the consequences of short- and longer-term degradation of E. radiata habitats and conclude that habitat fragmentation can lead to severe disruptions to kelp demography.

Aerosol iron solubility in a semi-arid region: temporal trend and impact of anthropogenic sources

Tellus B ◽  
2010 ◽  
Vol 62 (2) ◽  
Author(s):  
Ashwini Kumar ◽  
M. M. Sarin
Keyword(s):  
Arid Region ◽  
Temporal Trend ◽  
Anthropogenic Sources ◽  
Iron Solubility ◽  
Semi Arid Region ◽  
Semi Arid

VALORIZATION OF THE URBAN ENVIRONMENT OF SOUTH SERBIA FROM THE AIR QUALITY ASPECT

2018 ◽  
Vol 28 (4) ◽  
pp. 1329-1333
Author(s):  
Miodrag Šmelcerović
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Urban Environment ◽  
Pollution Sources ◽  
Anthropogenic Sources ◽  
Anthropogenic Factors ◽  
Limit Values ◽  
Cause And Effect ◽  
Sources Of Pollution

The protection of the environment and people’s health from negative influences of the pollution of air as a medium of the environment requires constant observing of the air quality in accordance with international standards, the analysis of emission and imission of polluting matters in the air, and their connection with the sources of pollution. Having in mind the series of laws and delegated legislations which define the field of air pollution, it is necessary to closely observe these long-term processes, discovering cause-and-effect relationships between the activities of anthropogenic sources of emission of polluting matters and the level of air degradation. The relevant evaluation of the air quality of a certain area can be conducted if the level of concentration of polluting matters characteristic for the pollution sources of this area is observed in a longer period of time. The data obtained by the observation of the air pollution are the basis for creation of the recovery program of a certain area. Vranje is a town in South Serbia where there is a bigger number of anthropogenic pollution sources that can significantly diminish the air quality. The cause-and-effect relationship of the anthropogenic sources of pollution is conducted related to the analysis of systematized data which are in the relevant data base of the authorized institution The Institute of Public Health Vranje, for the time period between the year of 2012. and 2017. By the analysis of data of imission concentrations of typical polluting matters, the dominant polluting matters were determined on the territory of the town of Vranje, the ones that are the causers of the biggest air pollution and the risk for people’s health. Analysis of the concentration of soot, sulfur dioxide and nitrogen oxides indicates their presence in the air of Vranje town area in concentrations that do not exceed the permitted limit values annually. The greatest pollution is caused by the soot content in the air, especially in the winter period when the highest number of days with the values above the limit was registered. By perceiving the influence of natural and anthropogenic factors, it is clear that the concentration of polluting matters can be decreased only by establishing control over anthropogenic sources of pollution, and thus it can be contributed to the improvement of the air quality of this urban environment.

Next Generation of Advanced Laser Fluorescence Technology for Characterization of Natural Aquatic Environments

2010 ◽  
Author(s):  
Alexander Chekalyuk ◽  
Andrew Barnard ◽  
Mati Kahru
Keyword(s):  
Laser Fluorescence ◽  
Aquatic Environments ◽  
Next Generation
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