CHN Flashcards
7 components of Environmental Health
Solid waste
Water
Air
Toxic and hazardous waste
occupational health
food safety
sanitation
climate change (July 2010) - recently added
PD 552 and PD 856 aids what components of the NEHAP
Sanitation
EO 489 means
Inter-agency committee on environmental health (IACEH)
refers to protected well, developed spring or rainwater cistern with an outlet without distribution system.
-serves 15-25 households
-outreach: not more than 250 metes from the farthest user
-40-140 L/min
Level 1 - Point source
Communal faucet located not more than 25 meters from the farthest user
Level 2
also known as Box and Can Privy or Bucket
Latrine
Burial of contents at least 12 inches from
the ground, to prevent access to flies or
escape of adult flies
Pail System
toilet facilities without a bowl, equipped
with either a squatting plate or a rise with
a sear, pit reduces the volume of its
contents as the liquid infiltrated the
surrounding soil
Pit latrine or Pit Privy
an elevated pit privy that has a covered
latrine. The elevation ensures that the
bottom of the pit is at least 1.5 meters
above the water table
Antipolo Toilet
fecal matter is collected in a built septic
tank that is not connected in a sewerage
system, septic tank contains water but no
drop pipe from the latrine that is dipped
into the water
Septic Privy
fecal matter is eliminated into a water
sealed drop pipe that leads from the
latrine to a small water filled septic tank
located directly below the squatting plate.
A ventilation pipe with a fly screen on top
is part of the design.
Aqua privy
fecal material is directly eliminated into a
body of water such as the flowing river
that is underneath the facility. WHO
recognizes the acceptability of the use of
such in disaster situations like heavy
flooding when the body of water is
deemed polluted. Body of water must be
large and freely flowing.
Overhung latrine
a pit latrine with a screened air vent
installed directly over the pit. The ambient
air that enters the pit hole pushes the foul
air onto the air vent, screen on top
prevents entry of insects attracted by the
smell
Ventilated Improved Pit (VIP) latrine
fecal matter is collected in a pit privy lined
with concrete in such manner so as to make
it water tight
Concrete vault privy
fecal matter is collected in a tank that
contains caustic chemical solution which in
turn controls and facilitates waste
decomposition
Chemical privy
fecal matter is collected into a pit with
urine and anal cleansing materials with
addition of organic garbage such as leaves
and grass to allow biological
decomposition
Compost privy
fecal matter is collected into a pit with
urine and anal cleansing materials with
addition of organic garbage such as leaves
and grass to allow biological
decomposition
Compost privy
it has a bowl with a water seal trap similar
to the conventional tank flush except that
it requires only a small volume of water for
flushing
Pour flush latrine
feces are excreted into a bowl with a water
sealed trap. The water tank that receives a
limited amount of water empties into a
bowl for flushing of fecal materials
through the water sealed trap and into the
sewerage system
Tank flush toilet
waterless toilet system that allows the
separate collection (fecal vault and urine
container) an on site storage or treatment
of urine and feces. The fecal vault is kept
dry and the feces are left dehydrated for
agricultural waste.
Urine Diversion and Dehydration Toilet (UDDT)
waterless toilet system that allows the
separate collection (fecal vault and urine
container) an on site storage or treatment
of urine and feces. The fecal vault is kept
dry and the feces are left dehydrated for
agricultural waste.
Urine Diversion and Dehydration Toilet (UDDT)
cleanliness and proper building
construction and maintenance.
Clean up drives
Environmental sanitation control
pest control method that utilizes
nature and nature’s system without
disturbing the balance of nature
Naturalistic control
utilizes predators, parasites, and
other natural enemies of the pest
species to reduce or eliminate the
pest populations. Aimed at killing
the larvae without polluting the
environment
Biological and genetic control