Water pollution Flashcards
water pollution
contamination of waterbodies
point source
single identifiable source of pollution
sewage factory
non-point source
diff sources
runoff
what do organic compounds contain
contains C
orgin of Inorganic compiounds
mineral
How to get inorganic compounds
manufacturing
industry
mining
Persistent contaminents
chemicals that are resistant to environmental degredation
Water and lipid solubility of persistent contaminents
low water solubility
high lipid solubility
Lipophilic
high lipid solubility
PFAS
forever chemicals
Qualities of persistent contaminents
high capacity for long range transport
potential considerable impacts on fish
bioaccumulation
rate of accumulation is greater than the rate of loss / breakdown
Does bioaccumulation occur up the food chain
no
occurs within the trophic level
biomagnification
increase in concentration of a persistent contaminent that occurs across trophic levels
does biomagnification occur up the food chain
yes
Anthropegenic mercury
not naturally occuring
waste burning, coal burning, chlorine production
Where is most of the antrhopegenic mercury
in the atmosphere
methyl mercury
bacteria convert elemental Hg to highly toxic bioavailible form
what happens when a fish has consumed methylmercury
severe liver damage
reduced fecundity
impaired gonadal function
reduced sperm mortality
altered sex ration
Endocrine disrupting compounds
mimics hormones and disrupts reproductive thyroid etc stuff
hormones
chemical released by one or more cells that affects cells in other parts of the organism
endocrine
transported in blood
What do growth hormones stimulate
thyroids
What are the hunger hormones
ghrelin
what are reproductive hormones
testostorone estrogen
What does hormone irregulation result in individually
reduced reproductive success
What does hormone irregulation result in population wise
decreased rates of
survival
growth
reproductive capacity
population
What does hormone irregulation result in ecosystem wise
disruption of food web
loss of ecology and economically important species
human health concerns
Acid deposition
addition of acidic compounds from atmosphere
Is ocean acidification the same as acid deposition
no
examples of wet deposition
rain, sno
examples of dry deposition
soot, ash
Does water combine with acid
yes its a universal solvent
TF acids leech compounds out of soils at low pH
yes
Al Mg
Mobilization of Al as pH+
increases mucus production including on gills
Reduce efficency of O2 uptake
impaired regulations of ions in blood and tissues
death
reduced survival of eggs and larvae
