From the article:

>>>"This indicates that children exposed to marijuana smoke are also more likely to be exposed to tobacco smoke, which increases their risk for cognitive deficits and respiratory ailments."

lol  -   Second-hand marijuana smoke is dangerous because of.... tobacco smoke?   Give us a break!   Research has shown that not even FIRST-HAND marijuana smoke is harmful to health.   -  Oh, wait a minute.   Then there's this statement from the article:

>>>"According to Wilson, more research is needed to investigate if secondhand marijuana smoke exposure is also a health risk."

So they HAVEN"T found second-hand marijuana smoke is harmful.   -  What fascinating NON-INFORMATION.    -  Of course it's not harmful.  In fact, marijuana consumers are increasingly turning to consuming with edibles or vaporization, so NO SMOKE.

As Ms. Forsman notes,  it could well turn out these minute, trace amounts may be BENEFICIAL to people and children.    Since our body produces its own cannabinoids, it could be like taking vitamins.

But when they find this out, who believes they are going to make a big deal out of it and put it out on the news wires?  -  Most likely....

[crickets chirping]