SITUATION TASK N 21

At the analysis of water it is set in a district|region|: the smell of water is 2-3 marks|numbers|, taste is 1-2 marks|numbers|, turbidity 1-2 mg/l, oxide ability of water 5 – 6 mg O2 /l, coli-titr| – 150 – 200.

Give a hygienic estimation|appraisal| to water. Could quality of water be the reason|cause| of diseases (what diseases)? What index must be explored additionally? How to improve quality of water?

SITUATION TASK N 22

At the analysis of morbidity of population in a district|region| T|by|. the high level of | sharp intestinal infections (SII) is exposed in hot time of year|. At the analysis of superficial water in this period it is set in a district|region|: the smell of water is 2-3 marks|numbers|, taste is 1-2 marks|numbers|, turbidity 1-2 mg/l, dry remain|remainder| 800 mg/l, oxide ability of water 5 – 6 mg O2 /l, coli-titr| – 200.

Could quality of water be reason|cause| of growth|height| of SII|? What are possible reasons|causes| of changes of quality of water? What indexes of water must be explored additionally? Specify|indicates| anty-epidemical measures|steps| in this district|region|.

SITUATION TASK N 22

At research of microclimate in school class it is set, that time of cooling of katatermometer is| 180 sec., factor of katatermometer| - 60. Effective temperature – 23,5 ⁰ EТ|.

Give estimation|appraisal| to the microclimate. How to improve a microclimate in a class?

| SITUATION TASK N 22

Name the method of determination|definition| of indexes of ventilation in the living room. What is the method determination|definition| of cleanness of air by content of CO 2.

SITUATION TASK N 23

In the town A. the last few years there is sharp growth|height| of morbidity of population by illnesses of breathing organs. With the purpose of search of reasons|causes| of this phenomenon researches of air|aerial||Wednesday| by the city SES||town| are conducted. In atmosphere air|towns| found out some pollutants|, including oxides of nitrogen at the level 0,8 MPC| and oxide of carbon in the concentration 0,6 MPC|. At the joint affecting organism these matters possess additive effect (summation|).

Give the hygienic estimation|appraisal| degree of contamination of air in town. Can contamination of air in town influence on multiplying this pathology? What other factors can influence at the increasing|rise| of morbidity of population? What hygienic measures|steps| are needed on the decline|lowering| of contamination of air?

SITUATION TASK N 24

In the district B. the last few years there is growth|height| of morbidity of population by illnesses of liver, endocryn system and CNS.

For search of reasons|causes| of this phenomenon researches of environmental pollution|aerial||Wednesday| by the SES||town| are conducted. In sources of water supply and in soil was|towns| found out some pollutants|, including heavy metals and pesticides. At the joint affecting organism these substances give more, than additive effect (potentiation|).

Give the hygienic estimation|appraisal| of environment contamination in district. Can this contamination of environment influence on multiplying this pathology? What other factors can influence at the increasing|rise| of morbidity of population? What are main anthropogenic sources of environmental pollution in the district |steps||lowering|?

SITUATION TASK N 25

How to explore and estimate|evaluates| the indexes of temperature and humidity|moisture| of air in the hospital ward of therapeutic separation of hospital with the purpose of improvement of terms of stay of patients?

SITUATION TASK N 26

At the analysis of river water in-use by the population of settlement R., such indexes are exposed: dry remain|remainder| - 2500 mg/l, chlorides - 420 mg/l, sulfates - 650 mg/l, nitrates - 50 mg/l, fluorine - 0,1 mg/l, oxide ability - 7 mg of O2/l, coli-index - 10|.

Is it possible to use such water for drinking? What diseases can arise up at the use of such water? How to improve quality of water?

Date: 2015-12-17; view: 803