Blast from the Past: Melting Glaciers as a Relevant Source for Persistent Organic Pollutants

2009 ◽  
Vol 43 (21) ◽  
pp. 8173-8177 ◽  
Author(s):  
Christian Bogdal ◽  
Peter Schmid ◽  
Markus Zennegg ◽  
Flavio S. Anselmetti ◽  
Martin Scheringer ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
The Past

Microbial approaches for remediation of pollutants: Innovations, future outlook, and challenges

2020 ◽  
pp. 0958305X1989678 ◽  
Author(s):  
Bishwambhar Mishra ◽  
Sunita Varjani ◽  
Gopalakrishnan Kumar ◽  
Mukesh Kumar Awasthi ◽  
Sanjeev Kumar Awasthi ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Scientific Knowledge ◽  
Scientific Literature ◽  
Microbial Interactions ◽  
Future Outlook ◽  
The Past ◽  
Treatment Technologies ◽  
Polluted Sites ◽  
Environmentally Sound

Environmental contamination with persistent organic pollutants has emerged as a serious threat of pollution. Bioremediation is a key to eliminate these harmful pollutants from the environment and has gained the interest of researchers during the past few decades. Scientific knowledge upon microbial interactions with individual pollutants over the past decades has helped to abate environmental pollution. Traditional bioremediation approaches have limitations for their applications; hence, it is essential to discover new bioremediation approaches with biotechnological interventions for best results. The developments in various methodologies are expected to increase the efficiency of bioremediation techniques and provide environmentally sound strategies. This paper deals with the profiling of microorganisms present in polluted sites using various techniques such as culture-based approaches and omics-based approaches. Besides this, it also provides up-to-date scientific literature on the microbial electrochemical technologies which are nowadays considered as the best approach for remediation of pollutants. Detailed information about future outlook and challenges to evaluate the effect of various treatment technologies for remediation of pollutants has been discussed.

scholarly journals Interactions of Microplastics with Persistent Organic Pollutants and the Ecotoxicological Effects: A Review

2021 ◽  
Vol 1 (1) ◽  
pp. 24-34
Author(s):  
Kuok Ho Daniel Tang
Keyword(s):  
Environmental Factors ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Environmental Pollutants ◽  
High Accumulation ◽  
The Past ◽  
Holistic Understanding ◽  
Two Factors ◽  
Natural Organic Matters ◽  
Multiple Conditions

With the increasing presence of microplastics and persistent organic pollutants (POPs), it is crucial to understand the interactions between the two emerging environmental pollutants and their ecotoxicological risks. This paper reviews more than 50 relevant scholarly papers published mainly in the past 10 years. It shows that the sorption of POPs to microplastics is affected by environmental factors and the properties of microplastics. The environmental factors comprise salinity, pH, natural organic matters and temperature. The properties of microplastics include degree of aging, molecular weight, size, shape, density, crystallinity, polymer type and color. The two factors are interconnected through weathering and weatherability of microplastics, where properties of microplastics, hence their interactions with POPs would be modified by environmental factors. Microplastics are potential vectors of POPs due to their ability to sorb and concentrate POPs. However, the studies reviewed showed the impacts to be low or insignificant and the sorbed POPs do not demonstrate significantly high accumulation, bioavailability and toxicity. In some literature, it has been reported that microplastics might reduce POPs in an organism. Due to limited studies and opposing views, there is a need to conduct more studies involving diverse POPs and microplastics under multiple conditions to provide a more holistic understanding on this subject.

Evaluating Risk After a Hazardous Waste Treatment Plant Released Persistent Organic Pollutants: Part 3, Aboriginal Health Risk and Impact

2018 ◽  
Vol 2 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Tee L. Guidotti
Keyword(s):  
Health Risk ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Aboriginal Health ◽  
Treatment Center ◽  
Hazardous Waste Treatment ◽  
Waste Treatment Plant ◽  
Health Canada

On 16 October 1996, a malfunction at the Swan Hills Special Waste Treatment Center (SHSWTC) in Alberta, Canada, released an undetermined quantity of persistent organic pollutants (POPs) into the atmosphere, including polychlorinated biphenyls, dioxins, and furans. The circumstances of exposure are detailed in Part 1, Background and Policy Issues. An ecologically based, staged health risk assessment was conducted in two parts with two levels of government as sponsors. The first, called the Swan Hills Study, is described in Part 2. A subsequent evaluation, described here in Part 3, was undertaken by Health Canada and focused exclusively on Aboriginal residents in three communities living near the lake, downwind, and downstream of the SHSWTC of the area. It was designed to isolate effects on members living a more traditional Aboriginal lifestyle. Aboriginal communities place great cultural emphasis on access to traditional lands and derive both cultural and health benefits from “country foods” such as venison (deer meat) and local fish. The suspicion of contamination of traditional lands and the food supply made risk management exceptionally difficult in this situation. The conclusion of both the Swan Hills and Lesser Slave Lake studies was that although POPs had entered the ecosystem, no effect could be demonstrated on human exposure or health outcome attributable to the incident. However, the value of this case study is in the detail of the process, not the ultimate dimensions of risk. The findings of the Lesser Slave Lake Study have not been published previously and are incomplete.

Low doses of persistent organic pollutants (PFOA and PCB153) increase the tumor aggressiveness of hormone-dependent cancer cells

2019 ◽  
Author(s):  
Aurelie Charazac ◽  
Charlotte Hinault ◽  
Frederic Bost ◽  
Stephan Clavel ◽  
Nicolas Chevalier
Keyword(s):  
Cancer Cells ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Low Doses ◽  
Tumor Aggressiveness
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