[Environmental protection and health of the population at using of a new cotton defoliant «uzdef-k¼ in agriculture].

Toxicity parameters of a new cotton defoliant «UzDEF-K¼ were studied in various ways of exposure. The preparation is established to be referred to the IV hazard class. Hygienic standards of a defoliant in environment objects andfoodstuffs (maximum concentration limit in reservoir's water - 2,0 mg/l, in working zone air - 2,5 mg/m and atmospheric ambient air - 0,2 mg/m were set). Maximum allowable limit in foodstuffs - cotton oil: "it isn't allowed", APC in the soil - 1,15 mg/kg), were scientifically based regulations of safe using of a preparation in agriculture are: a sanitary protection zone-100 m, in terms of attendance at work - 5 days.

[Working conditions and functional state of the organism of mechaniciandrivers under the defoliation of the cotton-plants].

In the article there are presented results of the study of the impact of working of mechanicians-drivers performing cotton-plant defoliation with a new import-substituting low-toxic defoliant denoted as «Fandef-Alo¼ on a functional state of various systems of the organism. Working conditions and the character of labor processes under the execution of defoliation were revealed to give rise in adverse shifts of physiological responses of various systems of the organism in mechanician-drivers, and the noise and the overwork labor process elevate the probability for the risk of the occurrence of occupational diseases that is indicates to the need for measures for the making labor healthy.

[Criteria for standardizing the density of building and population of developmental lands of cities]. / Kriterii normirovaniia plotnosti zastroiki i zaseleniia selitebnykh territorii krupnykh gorodov.

The paper presents hygienically substantiated ways of regulating the reconstruction and concentration of houses and plots near them in particular, which makes it possible to preserve the minimum required set of functional zones of the near-house territories, to improve the environmental situation, microclimatic and noisy conditions, and the population's living conditions when urban lands are intensively used.

[Daily energy expenditures of Uzbekistan miners]. / Sutochnye énergeticheskie zatraty shakhterov Uzbekistana.

Daily energy expenditures of miners in Uzbekistan were determined: 4076-4372 kCal. These data can be used for development of rations for Uzbekistan miners.

A large outbreak of poliomyelitis following temporary cessation of vaccination in Samarkand, Uzbekistan, 1993-1994.

Oral poliovirus vaccine (OPV) was not available in Samarkand, Uzbekistan, from November 1992 to August 1993. The ensuing outbreak of poliomyelitis was investigated: Patients with poliomyelitis were evaluated, the extent of poliovirus circulation was estimated, and the effectiveness of control measures was assessed. Between March 1993 and April 1994, 74 cases of paralytic disease attributable to poliovirus type 3 were reported. Cases originated from 63% of districts; 88% of cases were children < or = 2 years old, and the highest attack rates were for infants 9-11 months (65/100,000) and 12-14 months (60/100,000). Most patients were either unvaccinated (45%) or inadequately vaccinated (23%). Limited quantities of OPV became available in September 1993 and were provided to infants (3 doses) and 1-year-olds (2 doses), controlling rapidly the outbreak in these age groups, but cases continued, primarily among older children, until April 1994. These findings suggest that control efforts should be guided by the age distribution of the children with poliomyelitis.