Biologists from the environmental group SOS Mata Atlantica test the quality of the water from the Paraopeba River, days after a dam collapse in Brumadinho, Brazil, Thursday, Jan. 31, 2019. (AP Photo/Andre Penner)
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Biologists from the environmental group SOS Mata Atlantica test the quality of the water from the Paraopeba River, days after a dam collapse in Brumadinho, Brazil, Thursday, Jan. 31, 2019. (AP Photo/Andre Penner)
