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The limit for mercury in fish, set by health authorities, is exceeded in about half of the lakes in Sweden. Methyl mercury (MeHg) is the most toxic form of mercury and accumulates in fish. Therefore transformation of inorganic mercury (Hg) to methylmercury (MeHg) is an important …
… of vehicles. Lately NBB´s supplier of electronics, OSRAM, has developed a mercuryfree xenon lightsource. Mercury is one of the most hazardous environmental waste and to get rid of the mercury entirely in the lightsource is a big step that means alot for the environment. This …
Transformation of inorganic mercury (Hg) to methyl mercury (MeHg) is a biotic process that is proposed to be conducted primarily by sulphate reducing bacteria (SRB). The formation of MeHg is of great interest because it is the mercury species that biomagnifies to the greatest …
generell beskrivning, förekomst av traktorspår samt kvicksilverhalter i körpåverkat ytvatten
… these zones. Furthermore, the aim was to determine concentrations of methylmercury and total mercury in the surface water, which has been affected by machine tracks. To determine the characteristics of the riparian zones and the frequency of machine traffic, data from the …
… The major concern is production and accumulation of the most toxic form of mercury; methyl mercury (MeHg). Consequently, in about half of our 83 000 lakes fish contain concentrations above the recommended limit for human consumption of 0,5 mg mercury per kg fresh weight (most of …
… from the flow proportional sampling show that the concentrations of lead, mercury and cadmium has been reduced since 1989 while the concentrations of zinc, copper, chromium and nickel has increased in the industrial areas I1 and I2. In the residential areas S5 and Bäcklösa the …
en litteraturstudie
A literature review of contaminants; cadmium, methylmercury, dioxins, and PCB, for eleven different fish species (Greenland halibut, gilt headed bream, sea bass, wolffish, hoki, ocean perch, angler, Nile perch, pangasius, red snapper and tilapia) that were selected in …
… restricts the use of six hazardous substances/compounds; cadmium, lead, mercury, hexavalent chromium, PBB, and PBDE. The RoHS Directive currently includes category 1-7 and 10 in the categories of EEE listed in Annex 1A to the WEEE-Directive (Waste of EEE). The aim with the …
… was in general low. Heavy oils were encountered in shallow soil layers. Mercury was analysed due to risk of migration from an earlier factory that produced chlorine alkali. The metal was encountered in both the shallow and the deeper layers of soil. Only three of 56 soil samples …
… time of 4 000 h/year. The dominating source of light was 125 W discharge mercury lamps. The largest potential to reduce the energy consumption of the street lighting was to replace the 125 W discharge mercury lamps by a substitute 75 W high pressure sodium lamps. This measure …
Analys av tungmetallers distribution inom jordprofiler tagna från Abiskoområdet, nordvästra Sverige
… evidence that it is greatly impacted by pollution such as lead (Pb) and mercury (Hg). In this environment deposition of Hg has increased threefold since the last industrial revolution. In this study five cryosolic soil profiles within non-sorted circles (NSC) in the Abisko …
En undersökning av kvicksilverkoncentrationer i daterat bottensediment.
The aim of this study was to examine the current and historic mercury(Hg) load of the lake Storjuktan due to its recent exposure to a local potential source of Hg in form of the Sulphide mine Blaikengruvan(2006) and an earlier potential sources of Hg-load, the damming of the …
… and moisture levels and thereby a low heating value. It also contains a lot of mercury. This type of sludge is, unlike the other wastes in this study, homogenous and differs only between sewage treatment works.
… metals found at the contaminated sites in this survey were mostly arsenic and mercury, but also some zinc, copper lead, cadmium and nickel. The two junkyards (object 1 and object 15) and The former scrap collection place (object 13) are the three sites where heavy metals had …
… metals found at the contaminated sites in this survey were mostly arsenic and mercury, but also some zinc, copper lead, cadmium and nickel. The two junkyards (object 1 and object 15) and The former scrap collection place (object 13) are the three sites where heavy metals had …
