Public health aspect of residential enviornment

1. ENVIORNMENTAL SANITATION
Presented By-
Dr Garima Gupta
MBBS , MD Post Graduate student
University College Of Medical Sciences & GTB Hospital,
Delhi

2. RESIDENTIAL ENVIORNMENT
• Defined as “ as the physical structure that man
uses and the environs of the structure
including all necessary services, facilities ,
equipment and devices needed or desired for
the physical and mental health and social well-
being of the family and individual.”

3. CRITERIA FOR HEALTHFUL HOUSING
 Healthful housing provides physical protection and
shelter;
 Provides adequately for cooking, eating, washing and
excretory functions;
 Is designed, constructed, maintained and used in such
a manner such as to prevent the spread of
communicable diseases;
 Provides for protection from hazards of exposure to
noise and pollution;
 Is free from unsafe physical arrangements due to
construction or maintenanceand from toxic or harmful
materials;

4. Cont…
 Encourages personal and community development,
promotes social relationships, reflects a regard for
ecological principles, and by these means promotes
mental health.

5. HOUSING STANDARDS
SET BACK

6. SITE
ELEVATION
ACCESS TO STREET PLEASING SURROUNDINGS
SOIL SHOULD BE DRY
AND SAFE
NO BREEDING PLACES
FOR MOSQUITOES AND
FLIES
AWAY FROM NUISANCES
( POLLUTANTS)

7. STUDY OBJECT STANDARDS REQUIRED
NO OF ROOMS The number of living rooms should not be
less than 2, at least one of which can be
closed for security.
FLOOR • Pucca floor
• Impermeable
• Smooth and free from cracks and
crevices
• Height of plinth should be 2 to 3 feet
ROOF • Height should not be less than 10 feet
WALLS • Should be strong
• Low heat capacity
• Weather resistant
• Smooth
• Not easily damaged
FLOOR AREA For occupancy by single person- 100 sq.ft.
For more than one person- 120 sq.ft.

8. WINDOWS • Every living room should be provided
with at least two windows, and at least
one of them should open directly on to
an open space.
• Should be placed at a height of not
more than 3 feet
• Area should be 1/5th of floor area
• Doors and windows combined should
have 2/5th of floor area
VENTILATION Adequate / not adequate
CROSS-VENTILATION Present / not present
LIGHTNING • Day light factor should exceed 1% over
half the floor area
• Source of lightning
KITCHEN • Must have a separate kitchen
• Protected against dust & smoke
• Adequately lighted
• Adequate storage arrangements
• Water supply
• Sink for washing

9. OVERCROWDING
1. PERSON PER ROOM: best expressed as no of persons per
room
𝒏𝒐 𝒐𝒇 𝒑𝒆𝒓𝒔𝒐𝒏𝒔 𝒊𝒏 𝒉𝒐𝒖𝒔𝒆𝒉𝒐𝒍𝒅
𝒏𝒐 𝒐𝒇 𝒓𝒐𝒐𝒎𝒔 𝒊𝒏 𝒕𝒉𝒆 𝒅𝒘𝒆𝒍𝒍𝒊𝒏𝒈
1 ROOM 2 PERSONS
2 ROOMS 3 PERSONS
3 ROOMS 5 PERSONS
4 ROOMS 7 PERSONS
5 OR MORE ROOMS 10 PERSONS (ADDITIONAL 2 FOR
EACH FURTHER ROOM )

10. • 2. FLOOR SPACE
110 sq.ft. or more 2 persons
90-110 sq.ft. 1 ½ persons
70-90 sq.ft. 1 person
50-70 sq.ft. ½ person
Under 50 sq.ft. nil
A baby under 12 months is not counted ; children between 1 to 10
counted as half a unit.

11. • 3. SEX SEPARATION
Overcrowding is considered to exist if 2 persons over 9
years of age, not husband and wife, of opposite sexes
are obliged to sleep in the same room.

12. Bathing and Washing Exclusive facility and should provide
proper privacy.
Latrine • Present in the house/ community
latrine/ sulabh sauchalaya
• If present in house ; type of latrine
Water supply • Safe and adequate supply
• Timing of supply
• Storage of water for bathing, washing
& latrine
• Drinking water source and its storage
Drainage Open/ closed / nil
Separate drain for excreta Yes / no
Garbage and refuse disposal • Should be removed atleast daily
• In public bin/ thrown on street/ others
Infestation of pests • Rats
• Arthropods –houseflies, mosquitoes ,
cockroaches,fleas and bugs

13. • THANK YOU !