Highly toxic herbicide

This microbial consortium degraded 2,537.34 ngTEQ/kg of 2,3,7,8-TCDD congener in soil, equivalent to 59.1% lost of total toxicity in comparison to the control without bacterial seeding (4,294.12 ng TEQ/kg). Such a high ratio of dioxin degradation by a bacterial consortium was reported here for the first time, contributing more evidences for convincing the successful dioxin bioremediation of “Active Landfill” technology at large scale in Z1 area at Bienhoa airbase, Dongnai, Vietnam.

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Paraquat is a highly toxic herbicide, which not only leads to acute organ damage, but also to pulmonary fibrosis. There are only anecdotal reports of rescue lung transplantation, as paraquat is stored and only slowly released from different tissues.

6p vienzym2711 03-04-2020 11 1   Download

PART 3 Further issues and future prospects © 2001 C. H. Walker CHAPTER 13 The ecotoxicological effects of herbicides 13.1 Introduction Chapters 5–12 deal with groups of pollutants that have been studied in some depth and detail, largely because they have appreciable – sometimes very high – mammalian toxicity and are perceived as human health hazards. Some of them are markedly persistent and undergo biomagnification with passage along food chains.

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Introduction: As one of azide salts, lead azide is well known, because it is used as a detonator for air bags of automobiles. Recently, sodium azide has been frequently used for suicides and homicidal attempts. In this chapter, therefore, analytical methods are described only for sodium azide. Sodium azidea is being well used as an antiseptic (preservative)b in biochemical researches and as a material for synthesis of organic compounds.

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Introduction: Among many carbamate pesticides commercially available in Japan, those with relatively high toxicities are shown in Table 4.1 [1]. Carbamate pesticides are generally classified into N-methylcarbamate insecticides and N-allylcarbamate herbicides in view of their chemical structures and biological actions. The number of fatalities due to poisoning by carbamate pesticides is 50–100 every year in Japan; many of them are poisoned by methomyl [2].

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