For concrete contractors, concrete saws are must-have tools for slicing through hard materials such as concrete, asphalt, tile, and brick. Choosing the optimal saw—and just as important ...

Authorities say a concrete saw used during an unpermitted construction project next to a Maine daycare caused a carbon monoxide leak that hospitalized several children and staff members on Wednesday.

The concrete saw was being used in a nearby suite that was under construction, and smoke detectors near the saw were covered up, authorities said. The carbon monoxide poisoning that hospitalized ...