As noted above, fireworks may contain a variety of pollutants such as certain metals that can also contaminate water. ... Fireworks should never be detonated in the water since the concussion effect could kill nearby fish or other aquatic life.

Do fireworks affect fish?

A common chemical that is released in fireworks is ammonium perchlorate, which is known to contaminate ground and surface waters, and can cause harm to aquatic creatures residing in the lake.

Can loud sounds kill fish?

According to a new study marine animals could suffer detrimental effects ranging from a loss of hearing to increased stressed levels as a result of environmental noise - in ways not dissimilar to humans and land animals. ...