Annual emissions of anthropogenic Hg to the atmosphere in different regions of the world during the last decade show an interesting dichotomy: the emissions in the developed countries increased at the rate of about 4.5–5.5% yr−1 up to 1989 and have since remained nearly constant, while in developing countries the emissions continue to rise steadily at the rate of 2.7–4.5% yr−1. On a global basis, however, the total anthropogenic emissions of Hg increased by about 4% yr−1 during the 1980s, peaked in 1989 at about 2290 t and are currently decreasing at the rate of about 1.3% yr−1.

Concentrations of persistent organochlorine residues were determined in fish collected from several locations in eastern and southern Asia and Oceania to identifythe accumulation features of such residues in tropical aquatic organisms and to elucidate their distribution in tropical developing countries. DDT and its derivatives (DDTs) were the predominantly identified compounds in most locations.

A simple, selective and sensitive high-performance liquid chromatographic (HPLC) method has been developed for the measurement of josamycin residues in four porcine tissues (i.e., muscle, liver, kidney and fat).

Duplicate samples of the diet of vegetarian adults were analyzed to estimate the residues of dichloro-diphenyl-trichloroethane (DDT) and benzene hexachloride (BHC). The total food consumed by an adult per day was collected and categorized as fatty food, non-fatty food, water, and beverages. Fatty food was the main source of these chlorinated insecticides, and it contributed almost 50% of the total dietary intake. The average total DDT and BHC consumed by an adult were 19.24 micrograms/d and 77.15 micrograms/d, respectively.

Oral administration of the insecticide endosulfan (2 mg/kg per day) for 90 days in immature male rats resulted in an inhibition of pole-climbing escape response to electric shock (unconditioned) and avoidance response to buzzer (conditioned). These responses reflect respectively their learning and memory processes.

This paper reviews recent developments in the liquid chromatographic (LC) methods of analysis for the residues of antibiotics (aminoglycosides, chloramphenicol, sulfonamides, tetracyclines, macrolides, ?-lactams, etc.) in food products of animal origin.

Foodstuffs collected from different regions in India were analyzed for the presence of HCH (BHC), DDT, HCB, aldrin, dieldrin, heptachlor, and PCBs. Significantly high levels of food contamination with HCH, DDT, aldrin, and dieldrin were evident throughout India. Dairy products and livestock meat are the prime sources of human dietary exposure to these chemicals.

A proper inventory of atmospheric emissions from natural sources is basic to our understanding of the atmospheric cycle of the trace metals (and metalloids), and is also needed for assessing the extent of regional and global pollution by toxic metals1. It is generally presumed that the principal natural sources of trace metals in the atmosphere are wind-borne soil particles, volcanoes, seasalt spray and wild forest fires2–6.

The article offers information on the quantification of organochlorine pesticides residues in edible oils and oil seeds used in India. It states that different organochlorine pesticides were found in the edible oils and oil seeds which include metabolites, aldrin, and endusulfan. It says that sesame oils were found to have low saponification value (SV) but higher free fatty acid (FFA).

Pest and pest management by vegetable growers were evaluated by interviewing and close monitoring of randomly selected 204 farmers over a period of one and half years.  Two villages selected namely Kolabissa and Marassana located about 45 km from Peradeniya, practiced intensive mixed cropping of vegetables,  Study showd that 95.6% of the farmers were literate.  Many of the farmer