https://www.phoenixnewtimes.com/news/the-grand-canyon-has-an-alarming-amount-of-mercury-and-selenium-7610875/
Grand Canyon Under Threat From Mercury and Selenium | Phoenix New Times
Aug 31, 2015 - Amid both the national conversation about water pollution following the Animas River spill and a controversial debate over whether to tighten laws within the...
mercury and seleniumgrand canyonunder threat
https://www.usgs.gov/publications/maternal-transfer-contaminants-birds-mercury-and-selenium-concentrations-parents-and
Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and...
We conducted a detailed assessment of the maternal transfer of mercury and selenium to eggs in three bird species (n = 107 parents and n = 339 eggs), and...
mercury and seleniummaternaltransfercontaminants