Jonathan Challis

Research Scientist, Pesticide Chemistry. Agriculture and Agri-Food Canada.

[Jonathan Challis @JonathanChallis]

Looking to hire grad students for two exciting projects in my lab! DM if you have questions. Links to apply:

Environmental chemistry of veterinary-use drugs: https://t.co/TT0rJpAVvl

Microcystin chemistry and plant bioaccumulation: https://t.co/WSu5kpYGU0

[SETAC Prairie Northern @SETAC_PNC]

Remember that today is the deadline for nominations for our Board of Directors. We are looking for 4 general board members and 1 student member.

Student nominations are particularly encouraged!

Learn more ⬇️

https://t.co/BJgmt0GWGR

[SETAC Prairie Northern @SETAC_PNC]

It is almost the weekend, but dont forget the asbtract submission deadline for this year's Annual Meeting in Saskatoon just a few days away!

➡️ Monday May 15th! ⬅️

More info on our site!

https://t.co/PPVUc0hqwM

[SETAC Prairie Northern @SETAC_PNC]

REGISTRATION NOW OPEN!

Join us for our return to in-person meetings June 18-20 at @usask.

This year we will also be celebrating the 40th annyversary of the @ToxCentre

Abstract submission deadline: May 1st, 2023

Dont miss it!

@SETAC_world

https://t.co/PPVUc0hqwM

[Jonathan Challis @JonathanChallis]

@DianeOrihel @aslo_org Very cool! Congrats!

[SETAC Prairie Northern @SETAC_PNC]

Save the Date!

Join us for our Annual Meeting this June (18-20th). Back in-person at @usask!

In addition to sharing great science from around the prairies, this year we will have a chance to celebrate the 40th anniversary of the @ToxCentre

https://t.co/PPVUc0hqwM

[Jonathan Challis @JonathanChallis]

@FarmingSmarter @AAFC_Canada Thanks for the invite! Great day of talks!

[Farming Smarter @FarmingSmarter]

Dr. @JonathanChallis stopped by #FSConf to tell us about his research program at @AAFC_Canada!

[Markus Brinkmann @BrinkmannMarkus]

Exciting opportunity to become a Tier 2 Canada Research Chair in Environmental Exposomics and Integrative Toxicology and work with an outstanding team of researchers at @usask's @ToxCentre and beyond. Do not hesitate to reach out if you have any questions!

[Jonathan Challis @JonathanChallis]

Can't wait to get back to in-person conferencing! If you are doing environmental chemistry of aquatic organic contaminants we want your abstracts. Should be a great meeting!

[Jonathan Challis @JonathanChallis]

@smo_rachel I've had the odd sample look like this a while back and I finally realized I was accidentally getting a bit of permanent marker bleeding into the sample extract! Still not sure how I managed it but something to think about..

[Jonathan Challis @JonathanChallis]

Really interesting and novel technique for assessing biotransformation of ionizable chemicals. I was involved with during my post-doc. Happy to see this out. Nicely done @BrinkmannMarkus and team!

[Markus Brinkmann @BrinkmannMarkus]

New publication from our superstar @ToxCentre undergrads Zoey Bourgeois and Jordan Comfort: Predicting Hepatic Clearance of Psychotropic Drugs in Isolated Perfused Fish Livers https://t.co/f7RCn3VvsJ @usask @usaskUGResearch @JonathanChallis @usask_water

[Jonathan Challis @JonathanChallis]

@BrinkmannMarkus @usask @ToxCentre @VPR_USask Congratulations Markus! Tox Centre is in good hands! 👏👏👏

[Jonathan Challis @JonathanChallis]

@gong_yufeng Nice paper Gong!

[Jonathan Challis @JonathanChallis]

@haleycatton Cool! My daughter spotted one of these in our backyard this summer. I had never seen one before. It was moving very fast!

[Jonathan Challis @JonathanChallis]

Finished off the summer with a group icecream date! It's been a great first summer running my new lab. Sooo much of the credit goes to my fantastic team. Very grateful!

[Markus Brinkmann @BrinkmannMarkus]

Check out our newest paper, led by MSc student @Prajapati_0211, with help from @JonathanChallis and @aquaticfoodwebs, on levels of pesticides and trace metals in water, sediment, and fish from the South Saskatchewan River. @usask @usask_water @ToxCentre https://t.co/StBE1Pz3Ze