Toxicology Lecture 16

In the arctic

LAUGH!!! AT MY JOKES111 BECAUSE ????/?

FUNNY

low temperature and less sun = …slowed degradation of any toxicants.

slowed degradation of any toxicants. — specially with enzymes.

animals in cold places tend to need more….

LIPIDS.

oh yeah. I have some NIMBYism. But like. stuff concerning the other continents.

NA is my backyard bruh. Fahhhh.

looking back, my life has been nothing but a series of failures

(I clicked on the mine instead of double clicking for a flag)

hold on, um… can you give me a sec?

…..Alan. We are soooooo fucked.

orcas used to be my favourite animal :(

now it’s sea lions.

remember, not all animals will be exposed to the same amount/same type of contaminant due to lifestyles like…

predation, sex, migration… bro how is sex profanity do you want me to say the gender of the animal that does not have a concept of gender? hmm, if only we had a word for that.

airport..?

often associated with military bases, which are great places for a whole bunch of toxins.

The DEW line

distant early warning line of radar sites for the cold war. introduced a shitton of contaminants.

DEW line made a whole bunch of which type of contaminat?

PCBS, which we then cleaned up in one of the largest environmental cleanups in canadian history. shipped the waste barrels down south to deal with them properly —> though of course a lot did not get cleaned up.

one must remember that warmer = tourism and invasive species :( more cruise ships and more shipping. god i hate this place

more people in the arctic means what problem?

waste water effluent is actually going to be an issue there now, which is not something we ever mentally prepared for.

melting glaciers can release legacy pollutnats into the environment

because atmospheric deposition —> land on glacier —> freeze on glacier —> now it’s warm.

‘every possible problem that you can think about in the arctic is going to happen in Iqaluit first.‘

Great!

so we’ve already givven up is what you’re telling meeeeeeeeeeeee?

a lot of iquilait population is transiet —> transit is messy, lots oof people are now congregating.

massive influx of population —> the iqualit sewage system wasn’t meant to clean all that —> raw sewage goes into the water —> clams that people love to eat, are eating your shit. Are they safe to eat?

still can’t believe a seizure med is the most common drug in the world. we really all have brains fucking up?

the further away you get from a point source, the more chlorines you’ll see in your pcbs.

chlorine = hardy, yes?

close to iqulait: FTCA —> means FTCA is wastewater effluent

farfrom Iqulait: PFCAs —> means PFCAS are an atmospherically deposited, so… there’s not much we can do about it because it’s not a point source.

pelagic: the guys who float around and eat bits of plants
benthopelagic: guys who hang around the bottom, moving around and scavenging.
benthic: sit at the bottom and do not move (like clams.)

amphipod! amphipod! amphipod! how big can amphipods get? can I eat them? and it’s like comparable to shrimp?

when i’m in a repeating myeslf contest and my opponent is this guy during this particular lecture:

so again, showing that, so again, showing that, so again, showing that, so again, showing that these things are becoming a bit more of a problem, so again, showing, so again, showing that, so again, showi

truncate clams can live for up to 60 years in the same place. they do not move after they’ve picked a spot. which means you can look at their shells and figure out what they’ve been exposed to.

“I like to show this one to my students so that they can see how… how hardcore I am.”

clam anatomy: the hinge or umbo….

each line there is a year of the clams life.
and through wack ass technology you can scan each line and figure out what toxicants the clam was exposed to during those years.

clamatomy:

clams caught now have been found to have much higher concentrations of copper, metals, etc that are associated with waste water effluent.
the clams are also responding cellularly.

higher contaminats you need to get rid of: means you need to produce more ATP: means you have to do aerobic metabolism: means higher metabolism overall.

but the clams don’t seem to be effected in other ways, at least.

what kind of fucked up graph using that comic sans looking ass font.

“depuration study“ : poison the animal, observe effects, give the animal no more poison and see how long it take the animal to go back to normal.

look into instant ocean….