Every year on the Fourth of July, consumer fireworks harm revelers in Arizona — sometimes seriously.

Olivia Lemorrocco, the vice president of operations at Phillips Law Group, said her team sees an influx of injuries — especially to hands and faces — because of drunkenness or carelessness.

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“People do not understand how hot fireworks burn and how powerful they are,” she said.

“Sparklers burn at over 2,000 degrees. That is hot enough to melt metal. If you give sparklers to kids, you have to be extremely careful. These are the kinds of scars, especially for kids, because they will have them for the rest of their lives.”

The problem with fireworks is that the danger is not always obvious until it’s too late.

“People just do not realize how dangerous fireworks can be until something goes wrong,” she said.

In Arizona, consumer fireworks are permitted only from June 24 to July 6. They are not allowed between 11 p.m. and 8 a.m., except on July 4, when they can be used until 1 a.m. The law allows the use of ground-based devices, such as sparklers, smoke bombs, spinners and small fountains. Anything that launches or explodes, like Roman candles and skyrockets, is against the law.

People are also not allowed to use fireworks on public property, like city parks and mountain preserves. Fines can reach $2,500.

“Think of a place like the Riparian Preserve in Gilbert,” she said. “It is definitely against the law to use fireworks there.”

She said people should let professionals handle fireworks whenever possible.