Air Monitors Used in California Tank Crisis Were Inadequate in the Past, Leaving Returning Residents Uneasy

GARDEN GROVE, Calif.—The day before his 41st birthday, Hernando Morales found himself hurrying his one-year-old into the backseat of his car when an industrial tank just over a mile away from his apartment threatened to explode and release toxic chemicals throughout the area. Five days later, local …