Waste Management: Impact of Waste Accumulation Flashcards
Define Waste
Any material that has been discarded because it has served it’s purpose andis nolonger useful
What are sources of waste?
Domestic, Industrial, Agricultural, commercial, construction, Mining , Biomedical, E-waste, Toxic and Non toxic waste
Commercial Waste
Waste from commercial houses, stores, godowns hospitals and offices
Mining wastes
tailings, slag heaps, debris , chemicals
Some commercial toxic wastes are
Arsenic, cyanide, lead, cadmium, nickeI, plating sludges
Impact of waste accumulation
Spoilage of landscape
Pollution
Health Hazard
Effect on aquatic life
Effect on terrestrial life
Define spoilage of landscape
the accumulation of heaps of garbage on vacant land, which is left to decompose. THis ruins the natural beauty of the land and also becomes a home for rats and disease carrying organisms.
How does lead affect
blood system, causes behavioural disorders
effects of cadmium
cardiovascular disease, hypertension
effects of nickel
respiratory problems and cancer
effects of mercury
nerve and brain and kidney damage
effects of beryllium
shortness of breath, weight loss, lung cancer
define eutrophication
depletion of oxygen from water bodies naturally or due to human
define biomagnification
accumulation of toxic substances along the food chain
effect of toxins on plants
-leaf injuries
-premature falling of leaves
-decrease in transpiration
-reduced photosynthesis
-reduction in nitrogen fixation
how are marine turtles more susceptable to infections?
they have downward facing spines which prevent regurgitation
define bioaccumulation
the concentrated toxic deposition in higher trophic levels
effects of low oxygen in waterbodies
gastrointestinal irritation, kidney and liver damage, nerve damage in marine mammals
disease caused by mercury in japan
minamata disease
diseases spread by sandfly
kala-azar, sandfly fever
diseases spread by cats
dermatophytosis, anthrax
examples of greenhouse gases
CO2, CH4, NO, CFCs, water vapour
chemicals that cause ozone depletion
NO, NO2, CFCs
effects of acid rain
-destroys crops
-corrodes buildings
-contaminates air and water
-neurological diseases
-marine organisms affected
