In their university-funded study, Dr. Brodin and his colleagues first tested wild European perch caught from a midsize stream in Sweden called the River Fyris and found that levels of the drug in fish tissue were more than six times the level commonly detected in the water.

WSJ: Anxiety Drug in Rivers Affects Fish Behavior

The level that collapsed was stuffed with tons of pallets piled with cardboard boxes, crates of tissue-paper wrappings and other dense, heavy materials.

WSJ: 3 Die in Cambodia Factory Collapse

The level that collapsed was stuffed with tons of pallets piled with cardboard boxes, crates of tissue paper wrappings and other dense, heavy materials.

WSJ: 3 Die in Cambodia Factory Collapse