Fireworks can and do affect the environment in a bad way. They maybe fun and festive but they not only cause noise pollution, they also cause air pollution. Fireworks can contain such ingredients such as aluminum, titanium, copper, barium (which is also used in rat poison) and many other chemicals that we would preferably not like to have in your air and oceans. Fireworks also produce a lot a litter that can be found all around for a couple of months after new years.

Ohh I hate fireworks, I have to admit that I can't really look at them because the only thing I see is a bomb of pollution in the air. I know they are beautiful but are we really ready to sacrifice our earth just to watch some light in the air for 5 minutes. At least i would rather let go of the fireworks rather than pollute our earth more than she already is. Every country should try to decrease firework usage.

How bad are fireworks really though, have you seen any reports or studies to bring up facts for how bad they are? I will break down your post into two main arguments, the physical pollution of the containers, and the the chemical exposure. For for the physical, there are bigger problems than just the fragments of cardboard for fireworks. Mind you cardboard is commonly deemed as a safer alternative than plastic straws, even then there are still better options. Companies can offer environmentally friendly alternative options, and the people that worry about the pollution of fireworks would buy them. As well as the fact there are tons of environmentally friendly and biodegradable containers out there, like clay pigeons, which are made out of limestone and sulfur both of which are essential to plant growth. As for the harmful elements, there are already trace amounts of these elements in our everyday lives. Barium is the most harmful on the list you made, fireworks will mainly use Barium nitrate, even then this only makes up one color for all fireworks and that is the color green. While exposure to this element is hazardous to humans, this is an explosion in the lower parts of the atmosphere you aren't breathing enough to really be in any danger. The US Army is a much bigger risk then anyone who works at a place like Disney world that has daily fireworks. Past Barium nitrate only being used in one colored firework, the amount used is little to none compared to what is in a military grade flare or an  M8 armor-piercing incendiary. Because of this the best minds at the US Army have found new compound to replace perchlorates and barium with a strontium nitrate, potassium periodate or sodium periodate insteadm, all of which have less toxicity issues than Barium nitrate.

I agree that fireworks are very bad for the environment. living where i live, there is fragments of firework waste such as the containers they ignite in left all over the neighborhood roads months after the event not to mention the chemicals being released into the air.

I was told that I need to provided the sources for my new knowledge. Also, bigger problems would be that your city doesn't fine people for leaving trash, have volunteers or workers go out and pickup trash. If it's not fireworks, there will always be something else to litter your community.
"a 16-year-old girl survived after intentionally ingesting 20 g of barium nitrate", funny part was that her symptoms were the same as someone who is a s high as a kite. Also she ate 20g, not and was fine, not had x amount of PPM inhaled, you'll be fine.
"...increased sensitivity to pain stimuli, mydriasis /extreme dilatation of the pupil/ with slow reaction to light, toe reflex absent, intermittent uncoordinated muscle contractions over the total body".
https://toxnet.nlm.nih.gov/cgi-bin/sis/ … @DOCNO+401

M8 Tracer research, and the alternative to barium nitrate.
https://blogs.scientificamerican.com/gu … e-that-is/

Fireworks do cause environmental problems but it’s so insignificant that I don’t think it’s something people should be focusing on it. In the US big city’s and dry areas have firework bans so they don’t cause wildfires or hurt someone. There are so many things that are worse than fireworks that I don’t think it’s a big problem