Caroline Ghisolfi is a data reporter for the Houston Chronicle.
Legislators respond to The Examination and Houston Chronicle investigation of oil companies leaking hydrogen sulfide near families and schools.
A new investigation examines the health threat of H2S, a strong-smelling poisonous gas that saturates the Permian Basin of West Texas and other oil-production regions.
Tens of thousands of people live close to oil and gas wells where they risk exposure to hazardous levels of hydrogen sulfide. Regulators do little to protect them.
