Situational task N 9

Situational task N 1

At the analysis of test of river water such indexes are exposed: dry remain - 2500 mg/l, content of chlorides - 420 mg/l, sulfates - 650 mg/l, nitrates - 50 mg/l, fluorine - 0,1 mg/l, coli-titr – 200.

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

Situational task N 2

In the operating block of hospital there is operating hall on 2 tables (area 54m²). Ventilation is influx-extraction (+4, -5). Local luminosity of the operating field - 1500 lux. General artificial luminosity - 200 lux. Temperature of air during the operation - 26⁰C, relative humidity - 80%. Content of CO₂ -0,15%, general microbe number in air before the operation 1000 in 1m3.

Give the hygienic estimation of operating block. How to improve hygienic conditions in operation hall?

Situational task N 3

The flash of sharp intestinal infections (SII) is marked in the settlement N.

How to set and prove the water-way of transmission at this flash of SII in a settlement? What anty-epidemical measures it is need in this place? How to control effect of these measures?

Situational task N 4

The analysis of test of water from a well in village show: taste of water - 1 ball, smell - 3 ball, colour – 200, dry remain - 800 mg/l, chlorides - 230 mg/l, sulfates - 310 mg/l, nitrates - 55 mg/l, microbe number – 200, coli-index – 5.

Give hygienic estimation of water. What diseases can be in population, using such water? How to improve quality of water?

Situational task N 5

The operating block of hospital consists of the some operating halls on 1 table (40m²). Light coefficient 1/5, CNI – 1%. Lamplight: general luminescent daylight-lamps (luminosity - 200 lux), local - 2000 lux. Ventilation a reveal and drawing (+3 – 4). Contents of CO₂ -0,07%, microbe number in air before the operation 1000 in 1 m3, during the operation – 5000.

Give the hygienic estimation of operating block. How to improve conditions in operation block?

Situational task N 6

What measures must be conducted in regard to a drinking water at an unfavorable epidemiological situation in a settlement on the intestinal infectious diseases?

How to control efficiency of these measures?

Situational task N 7

In the region A. at the analysis of river water it is set:

Smell - 2 ball, Taste - 1 ball, Turbidity - 1 mg/l, dry remain - 1000 mg/l, Fluorine - 0,1 mg/l, Nitrates - 50 mg/l, Microbe number – 180, Coli-index – 2.

Give a hygienic estimation to water. To what violations of health can bring the use of this water? How to improve quality of water?

Situational task N 8

In connection with the increase of level of cold diseases among schoolboys the estimation of microclimate is conducted in a class. It is set: the temperature of air 16 degrees; relative humidity 80%; the rate of movement of air 0,4 m/s; cooling ability of air 8,8 mcal/ sm² sec., effective temperature - 16,7⁰ EТ.

Give the hygienic estimation of microclimate, could these terms to provoke the colds diseases? How to improve a microclimate in a class?

Situational task N 9

At research of microclimate it is set in a living room, that time of cooling of kata-termometer is| 600 sec., factor of katatermometer| - 100. Effective temperature – 16,5 ⁰ EТ|.

Give hygienic estimation|appraisal| to the microclimate. What thermal sensation of people will be in this room? How to improve a microclimate in a room?

Date: 2015-12-17; view: 1450