Persistent organic pollutants in Detroit River suspended sediments: polychlorinated dibenzo-p-dioxins and dibenzofurans, dioxin-like polychlorinated biphenyls and polychlorinated naphthalenes

Chemosphere ◽  
2002 ◽  
Vol 49 (2) ◽  
pp. 111-120 ◽  
Author(s):  
Chris Marvin ◽  
Mehran Alaee ◽  
Scott Painter ◽  
Murray Charlton ◽  
Peter Kauss ◽  
...  
2019 ◽  
Vol 37 (5) ◽  
pp. 556-562 ◽  
Author(s):  
Karolina Barcauskaitė

Depending on the origin, the compost produced may contain not only nutrients but also pollutants, such as heavy metals and persistent organic pollutants. It is very important to determine them in soil-improving substances, because persistent organic pollutants show environmental toxic, cancerogenic, mutagenic effects and do not decompose for a long time. The aim of this study was to determine seven polychlorinated biphenyls concentrations in different kinds of composts produced in Lithuania and to evaluate the appliance of these composts in agricultural land. First, before routine analysis was done a gas chromatography with electron-capture detector method was developed. In this study 145 samples of green waste, sewage sludge, cattle manure, food waste, mixed municipal waste, digestate and composts made from mixed municipal waste after mechanical–biological treatment were analysed. Obtained results show that 28% of investigated cattle manure composts (CMCs) and 10.5% of food waste composts (FWCs) were free from polychlorinated biphenyls. Other kinds of composts investigated in this study (green waste compost (GWC), sewage sludge compost (SSC), mixed municipal waste compost (MMWC), mixed municipal waste compost after mechanical biological treatment (MMWCABMT) and digestate (DIG)) were contaminated 100% with polychlorinated biphenyls. Despite the fact that polychlorinated biphenyls were forbidden 25 years ago, their concentration varied from 2.70 to 163.7 µg kg−1 in different kinds of composts produced in Lithuania. According to get an increasing average amount of Σ7 polychlorinated biphenyls, Lithuanian composts were distributed as follows CMC > GWC > DIG > FWC > SSC > MMWCABMT > MMWC.


Author(s):  
В.Ю. Цыганков

В главе представлена информация о Стокгольмской конвенции, этапах ее формирования и "грязной дюжине". Описаны физико-химические свойства, распределение в окружающей среде, метаболизм и деградация, токсичность основных стойких органических загрязняющих веществ (СОЗ), таких как хлорорганические пестициды (ХОП) и полихлорированные бифенилы (ПХБ). Ключевые слова: «грязная дюжина»; Стокгольмская конвенция; СОЗ; ХОП; ПХБ; физико-химические свойства; распределение в окружающей среде; метаболизм и деградация; токсичность. In the chapter, the "dirty dozen" of the Stockholm Convention and the stages of its formation are presented. The physical and chemical properties, distribution in the environment, metabolism and degradation, toxicity of the main persistent organic pollutants (POPs), such as organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), are described. Keywords: "dirty dozen"; Stockholm Convention; POPs; OCP; PCBs; physical and chemical properties; distribution in the environment; metabolism and deg-radation; toxicity.


2008 ◽  
Vol 74 (7) ◽  
pp. 2089-2094 ◽  
Author(s):  
Harold D. May ◽  
Greg S. Miller ◽  
Birthe V. Kjellerup ◽  
Kevin R. Sowers

ABSTRACT Anaerobic microbial dechlorination is an important step in the detoxification and elimination of polychlorinated biphenyls (PCBs), but a microorganism capable of coupling its growth to PCB dechlorination has not been isolated. Here we describe the isolation from sediment of an ultramicrobacterium, strain DF-1, which is capable of dechlorinating PCBs containing double-flanked chlorines added as single congeners or as Aroclor 1260 in contaminated soil. The isolate requires Desulfovibrio spp. in coculture or cell extract for growth on hydrogen and PCB in mineral medium. This is the first microorganism in pure culture demonstrated to grow by dehalorespiration with PCBs and the first isolate shown to dechlorinate weathered commercial mixtures of PCBs in historically contaminated sediments. The ability of this isolate to grow on PCBs in contaminated sediments represents a significant breakthrough for the development of in situ treatment strategies for this class of persistent organic pollutants.


The Analyst ◽  
2019 ◽  
Vol 144 (2) ◽  
pp. 677-684 ◽  
Author(s):  
Irfan Ahmad ◽  
Jiaying Weng ◽  
A. J. Stromberg ◽  
J. Z. Hilt ◽  
T. D. Dziubla

Despite increasing controls in their production and disposal, persistent organic pollutants in water, even at concentrations below parts per million, represent an ongoing environmental health risk.


2018 ◽  
Author(s):  
OCTO

Plastics are universally associated with pollutants. Chemicals like bisphenol-A (BPA) and phthalates are commonly bonded to plastics during manufacturing. Polychlorinated biphenyls (PCBs) and other persistent organic pollutants (POPs) often adsorb onto plastics from surrounding waters when they are released into the ocean. Fish have been shown to ingest plastic and integrate these adsorbed pollutants into their tissues. Since fish are commonly served for human consumption, there are potential risks to human health and development from eating contaminated fish.


Author(s):  
E A. Belinskaya ◽  
S. E. Mazina ◽  
E. K. Pichugina ◽  
G. V. Zykova

The paper considers the influence of polychlorinated dibenzo-p-dioxins, dibenzofurans, biphenyls and benz[a] pyrene on the germination of barley seeds, as well as the influence of pollutants on seed storage. As a result of the experiments, the negative effect of polychlorinated biphenyls on seed germination at a concentration of 100 μg/ kg has been found, which can be explained by the high accumulation of low-chlorinated pollutants by seeds. The negative effect of benz[a]pyrene on seed germination at concentrations of 20 and 100 μg/kg has been registered.


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