03/07/2025
"Fireworks are divided into two categories, personal use and professional. Personal use fireworks can be purchased by the general public and most exposures result in only gastrointestinal upset or risks unrelated to toxins such as dermal burns and foreign body obstruction.
Sparklers, the most common firework that the APCC receives calls about, contain a variety of different salts in low concentrations. Most exposures to sparklers result only in GI upset, though there is the potential for more serious signs if a large amount is ingested.
Fireworks contain fuel, oxidizers, color producing compounds (often heavy metals), binders and reducing agents. Some of these components can be corrosive so dilution with milk or water is often preferred over inducing vomiting. Fireworks that contain cyclonite, barium or chlorate have the potential to cause more serious signs.
Heavy metal toxicity is possible with larger exposures or exposures to professional fireworks."
https://www.aspcapro.org/resource/top-4-july-4th-pet-toxins
