I do not want to advertise charlatans

I realize that my actions are an inflatable raft attack on an aircraft carrier, but sent the following letter to the technical support of the Runner’s partners:

Hello.

I am concerned about the content of contextual advertising that is displayed on my website, www.kwiz.me. My site is devoted to the study of foreign words on the cards and is designed for intelligent users (in addition, it is visited by a children's audience), and I do not care what ads are shown on it.
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So, now runner ads are displayed:
**** - ad text contains the word "prostitute"
**** - offers reading someone else's SMS
**** - offers to know the date of death

I would like to know whether it is technically possible to send to my site only ads that are valid for all audiences, not advertising questionable services and do not contain words that can traumatize children's consciousness?

Until the clarification of this issue is forced to remove the runner’s advertisements.

Thank you for your attention to my problem.