The Trump administration’s proposal to slash a quarter of the EPA’s budget will harm children’s health, several professionals who work in the pediatric health field told congressional staff and reporters April 5.

“Environmental health is all about prevention not about treatment,” Jerome Paulson, a professor emeritus of pediatrics at George Washington University’s School of Medicine and Health Sciences, said. “As a pediatrician, I know that there is almost nothing that I can do to treat children who have been...