If media organizations were smart, they'd go back to static ads placed strategically around the text. It used to work very well for newspapers. They way it is now, people use ad blockers and/or ignore the ads ... that is, if they don't get flustered and just leave the site.
On IOS, you cannot block ads.
All you can do is browse mobile sites.
I usually ‘get flustered and leave the site’; especially when also confronted with those ‘by continuing, you accept’ notices.
This is counterproductive for the sites that do these things. Your ads and content accomplish nothing, if people won’t stay on your site long enough to see them.