Category: Mercury

Dragonflies reveal mercury pollution levels across US national parks

Read the full story from Dartmouth College.

Research confirms dragonfly larvae as ”biosentinels” to indicate mercury pollution and presents the first-ever survey of mercury pollution in the U.S. National Park System.

Associated journal article: Collin A. Eagles-Smith, James J. Willacker, Sarah J. Nelson, Colleen M. Flanagan Pritz, David P. Krabbenhoft, Celia Y. Chen, Joshua T. Ackerman, Evan H. Campbell Grant, David S. Pilliod (2020). “A National-Scale Assessment of Mercury Bioaccumulation in United States National Parks Using Dragonfly Larvae As Biosentinels through a Citizen-Science Framework.” Environmental Science & Technology 54 (14): 8779 DOI: 10.1021/acs.est.0c01255

Trump Administration to Weaken Limits on Mercury and Other Toxic Pollutants

Read the full story at e360.

The Trump administration is expected to weaken regulations on mercury pollution from oil- and coal-fired power plants this week, several news outlets reported. The new rule will change how the U.S. Environmental Protection Agency calculates the costs and benefits of reducing releases of mercury and other toxic metals, undermining the legal justifications for limiting the pollutants.

2020 Mercury Inventory Report

Download the document.

On March 30, 2020, EPA published the first in a series of triennial reports on the supply, use, and trade of mercury in the United States, supported by Agency’s mercury inventory reporting rule (an initial inventory report was published in 2017, prior to the rule that established reporting requirements). Based on the information collected under the mercury inventory reporting rule, the 2020 Mercury Inventory Report identifies any manufacturing processes or products that intentionally add mercury and recommends actions to achieve further reductions in mercury use.

The scientists restoring a gold-mining disaster zone in the Peruvian Amazon

Read the full story in Nature.

Months after the military expelled thousands of illegal miners from La Pampa, researchers gained access to a sandy wasteland.

Students chowing down tuna in dining halls are unaware of mercury exposure risks

Read the full story from the University of California – Santa Cruz.

Some students are helping themselves to servings of tuna well beyond the amounts recommended to avoid consuming too much mercury. Researchers surveyed students on their tuna consumption habits and knowledge of mercury exposure risks, and also measured the mercury levels in hair samples. Hair mercury levels were closely correlated with how much tuna the students said they ate. And for some, the measurements were above what is considered a ‘level of concern.’

Webinar Series on the Mercury Inventory Reporting Rule of the Toxic Substances Control Act (TSCA)

EPA is hosting two webinars for companies, organizations, and individuals required to report under the Mercury Inventory Reporting Rule of the Toxic Substances Control Act (TSCA). The final rule requires persons who manufacture (including import) mercury or mercury-added products, or otherwise intentionally use mercury in a manufacturing process, to submit their mercury information to EPA using the online Mercury Electronic Reporting (MER) application. This information will be used to develop triennial inventories of mercury supply, use, and trade in the United States.

A webinar providing background on reporting requirements under the final rule, such as who must report under the final rule and the required reporting information, will take place on Tuesday, May 21, 2019 at 2 PM ET. Following EPA’s presentation, webinar participants will have an opportunity to ask questions on reporting requirements under the final rule.

To participate in the “Mercury Inventory Reporting Rule” webinar, please register on Eventbrite at

A second webinar demonstrating how to use the online MER application through EPA’s Central Data Exchange (CDX) will take place on Thursday, May 23, 2019 at 2 PM ET.

To participate in the “Mercury Electronic Reporting (MER) Application” webinar, please register on Eventbrite at

For more information on the Mercury Inventory Reporting Rule, visit EPA’s Mercury website at

Critics pounce on EPA’s mercury proposal

Read the full story in Greenwire.

EPA officials confronted a chorus of calls this morning to drop plans for revisiting their landmark regulation of power plant mercury pollution as speakers at a public hearing accused the agency of industry bias, flawed analysis and sheer wrongheadedness.

Don’t Mess with Mercury — A mercury spill prevention initiative for schools.

This site, developed by the Agency for Toxic Substances and Disease Registry, provides information about preventing and cleaning up mercury spills in schools. It includes videos, lesson plans, and Spanish language resources.

Mercury rising: Are the fish we eat toxic?

Read the full story at Science Daily.

Researchers say industrial sea fishing may be exposing people in coastal and island nations to excessively high levels of mercury.

Mercury’s match: sex hormones?

Read the full story in Great Lakes Echo.

Sex hormones might be the secret for lowering mercury in fish and maybe humans, researchers say.

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