Hull was particularly impressive on her major championships debut, finishing fifth in her heat in four minutes 08.71 seconds.
She is one of seven athletes competing in Doha who are members of the NOP, a group which also includes 2019 world champions Sifan Hassan from the Netherlands (women’s 10,000m) and American Donovan Brazier (men’s 800m).
All have been warned by the IAAF’s athletics integrity unit that they can have no further contact with Salazar.
“I have only been there [with the NOP] since the start of July, straight after [the Prefontaine Classic],” said the 22-year-old Hull.
“All of my work has been done with [personal coach Pete Julian] and Pete’s crew so I haven’t had anything to do with Alberto.”
Athletics Australia high performance and coaching boss Christian Malcolm was satisfied that there had been no contact between Hull and the NOP head coach.
“The main thing is the athlete’s well-being, she studied at the University of Oregon in the States which is not too far away so it makes sense to train in that environment,” Malcolm said.
“We have been in constant contact with her, and all of our other athletes, to make sure they are in the right environment.”
Hull said the breaking scandal surrounding Salazar – best known for training four-time Olympic champion Mo Farah – had not affected the build-up to her major championships debut.
“I do a pretty good job of staying in my bubble … being in the Project because you do sort of live in a bubble, you train in a bubble,” she said.
“To be honest I haven’t read much about it, I don’t know anything about it, what you guys have released I haven’t even read that.
“I think I have done a good job to stay very internal and just focused – because I knew it wasn’t going to be easy for me so I had to be 100 per cent on my A game.”
Hull will race again in the women’s 1500m semi-finals on Thursday evening (early Friday AEST).
In other action on Wednesday in Doha, London Olympics finalist Steve Solomon was run out in the men’s semi-finals despite clocking his fastest time of the year of 45.54.
World championships rookie Sarah Carli slashed a quarter of a second off her PB when running 55.43 in the 400m hurdles semis.
Both she and Lauren Boden (55.94) – competing at her fifth straight world titles – fell short of a berth in the final.
Nick Hough (13.61) was run out in the semis of the 110m hurdles and Melissa Duncan was eliminated in the women’s 5000m after finishing ninth in her heat in 15:37.37.