Breathing in fireworks is not good as there are alot of
toxic substances in that smoke.. The risks are.....

The blue hue is formed by copper which can be toxic...
And perchlorate which has contaminated many drinking water supplies from military and aerospace operations,
can impair the thyroid gland by blocking the intake of iodide..
Fetuses are most at risk,
since thyroid hormones regulate their growth..

Smoke and perchlorate is a risk to the fetus...
Besides traces of poisonous metals..
and the perchlorate a hormone - altering substance used
as an oxidizer ..trickles down to the ground....

And high levels of smoke and particules...
Is expecially bad for the lungs...

Chemists say fireworks are the dirtiest of the dirty bombs..
So spectators will expirence more then a spectacular show..

It's a health risk.....