In the years 1987 to 1988 the residues of chlorinated hydrocarbons (HCB, alpha HCH, gamma HCH, DDE + DDT sum and PCB) were detected in more than 5000 thousand samples of milk and milk products (butter, cream, sheep milk cheese, cheeses). The recorded values of HCB ranged from 0 to 0.90 mg per kg fat, those of alpha HCH from 0 to 0.66 mg per kg, gamma HCH from 0 to 1.66 mg per kg fat, DDT sum from 0 to 1.03 mg per kg fat and PCB from 0 to 4.03 mg per kg fat--the 1988 value. The average values concerning the residues of chlorinated pesticides did not show any increase in comparison with the values recorded in 1980 to 1984. The average recorded values for PCB residues ranged in 1988 from 0.04 to 0.24 mg per kg fat.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Ester derivatives of Dictyostelium differentiation-inducing factors exhibit antibacterial activity, possibly via a prodrug-like function.
BMC Res Notes
January 2025
Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai, 270-1695, Japan.
Objective: Dictyostelium differentiation-inducing factors 1 and 3 [DIF-1 (1) and DIF-3 (2), respectively], along with their derivatives, such as Ph-DIF-1 (3) and Bu-DIF-3 (4), demonstrate antibacterial activity in vitro against Gram-positive bacteria, including methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA), vancomycin-sensitive Enterococcus faecalis (VSE), and vancomycin-resistant Enterococcus faecium [VRE (VanA)]. This study investigates the therapeutic potential of DIF compounds against these Gram-positive bacteria.
View Article and Find Full Text PDFMetal-Free Synthesis of α-H Chlorine Alkylaromatic Hydrocarbons Driven by Visible Light.
Molecules
January 2025
Dipartimento di Scienze Chimiche, Fisiche, Matematiche e Naturali, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy.
Chlorination is a widely used strategy at the industrial level. Chlorinated products represent indispensable building blocks in synthetic chemistry. Here, we report the synthesis of benzyl chlorides and α-chloro alkyl arenes, mediated by visible light, starting from variously substituted toluenes and -dichloroacetamide as a chlorinating reagent.
View Article and Find Full Text PDFSynthesis of Resorcinol and Chlorophenol from Irradiation of 1,3-Dichlorobenzene in a Water Ice Environment by Low-Energy Electrons.
Int J Mol Sci
January 2025
Faculty of Sciences, Siedlce University, 3 Maja 54, 08-110 Siedlce, Poland.
Dichlorobenzene is beneficial to industries, however, the release of this compound into the environment causes significant damage to ecosystems and human health, as it exhibits resistance to biodegradation. Here, we show that chlorophenol and resorcinol are synthesized from 1,3-dichlorobenzene in a water ice environment (1) directly on a poly-crystalline gold surface and (2) after low-energy (<12 eV) electron irradiation of admixture films. For the latter, at energies below 5.
View Article and Find Full Text PDFSynthesis mechanisms, property characterization, and environmental applications of biogenic FeS: A review.
Water Res
January 2025
Baohang Environment Co., LTD, Beijing 100070, China. Electronic address:
Iron sulfide (FeS) exhibits superior reactivity toward a wide range of contaminants, making it a promising candidate for environmental remediation in various media, including surface water, wastewater, soil, and groundwater. Driven by green and sustainable development principles, efficient, low-cost, and environmentally friendly biosynthesis has attracted considerable attention and has great environmental remediation potential. This review provides a comprehensive overview of the recent advances in biogenic FeS (bio-FeS), focusing on its synthesis mechanisms, performance characterization, and environmental applications.
View Article and Find Full Text PDFElectrochemical reduction for chlorinated hydrocarbons contaminated groundwater remediation: Mechanisms, challenges, and perspectives.
Water Res
January 2025
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China. Electronic address:
Electrochemical reduction technology is a promising method for addressing the persistent contamination of groundwater by chlorinated hydrocarbons. Current research shows that electrochemical reductive dechlorination primarily relies on direct electron transfer (DET) and active hydrogen (H) mediated indirect electron transfer processes, thereby achieving efficient dechlorination and detoxification. This paper explores the influence of the molecular charge structure of chlorinated hydrocarbons, including chlorolefin, chloroalkanes, chlorinated aromatic hydrocarbons, and chloro-carboxylic acid, on reductive dechlorination from the perspective of molecular electrostatic potential and local electron affinity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!