Natalie Weber/Houston Public Media

Felipe Riccio has a 5-year-old son at the Awty International School in Spring Branch. Riccio decided to send his son to the school because of its diversity.

"It has a Spanish program, a French program, great athletics, great academics," he said.

But now, Riccio is worried about how a temporary concrete plant near the campus in west Houston could affect his son. Concrete plants are known to emit fine particulate matter that can cause health problems.

"It is extremely close to the school — about 300 feet from the buildings, about 400 feet from a playground," he said.

Riccio and other Awty parents and grandparents gathered Thursday outside the Texas Commission on Environmental Quality’s Houston office to protest the batch plant.

The concrete plant is b

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