Arsenic is toxic to humans, but these microbes live and breathe it

Researchers from the School of Oceanography at the University of Washington have discovered how some microorganisms that live in portions of the ocean where oxygen is almost absent manage to thrive. Called marine oxygen-deficient zones (ODZs), these regions are sandwiched between the oxygen-rich surface and the deep layers. In their study, which appeared in the journal PNAS, they … Continue reading Arsenic is toxic to humans, but these microbes live and breathe it

Arsenic in Water at EPA Approved Standards Linked to Heart Disease

What comes to mind when you think of arsenic? For most people, it conjures up a deadly poison used by killers in fictional mystery novels and some real-life murderers, too. But the danger of this toxic substance most often comes not from some evil-doer but simply from exposure to it through our environment, including the … Continue reading Arsenic in Water at EPA Approved Standards Linked to Heart Disease