Southwest (AZ NM OK TX)

Post-Harvey emissions of pollutants from Houston-area petrochemical plants make air unhealthy for residents to breathe.

"Texas has launched aerial attacks on mosquitoes swarming coastal regions of the state and threatening to spread disease and hinder disaster recovery in the aftermath of Hurricane Harvey."

"Hurricane Harvey's floodwaters triggered a spill of almost a half-million gallons of gasoline from two storage tanks along the Houston Ship Channel, marking the largest spill reported to date from a storm that slammed into the heart of Texas' huge petrochemical industry."

"Floodwaters in two Houston neighborhoods have been contaminated with bacteria and toxins that can make people sick, testing organized by The New York Times has found. Residents will need to take precautions to return safely to their homes, public health experts said."

"GALENA PARK, Texas —  Cindy Sanchez began to feel ill while barbecuing just before Harvey's torrents started pelting this city just east of Houston, along a corridor with the nation's highest concentration of petrochemical plants."

"Democratic members of New Mexico's congressional delegation are pushing federal officials to uphold an agreement that limits oil and gas leasing on public land near Chaco Culture National Historical Park."

"A group of first responders exposed to smoke from a Crosby, Tex., chemical plant fire after Hurricane Harvey are suing the owner of the plant for more than $1 million, saying that they vomited and gasped for air in the middle of the road in a scene the suit describes as 'nothing less than chaos.'"

"CHANNELVIEW, Texas — Public health officials are investigating a case of dangerous liquid mercury that appears to have washed or blown ashore here, east of Houston, in the aftermath of Hurricane Harvey."