Daily Archives: January 16, 2013

Issue Overview: Mercury Supply and Trade

by Mark Staples and Danya Rumore

Mark and Danya here. During the INC5 negotiations, we’re covering issues related to mercury waste, supply and trade, and artisanal and small scale-gold mining (ASGM). Here, in our second installment, we provide an overview of mercury supply and trade, discuss what is already included in the draft treaty text about this issue, and explain what is now being discussed and will hopefully be decided in the days ahead.

All mercury used in products and processes originates from deposits in the earth’s crust. Deposits are distributed around the world, with a large concentration in western Asia and China. Mines in Spain, Italy, and Slovenia were historically the main global sources of the metal, but most mercury mining today occurs in Kyrgyzstan and China.

Once extracted, mercury is traded as a global commodity. Annual international movements of mercury have historically been on the order of 1000–2000 tonnes per year. Nations that have existing mines aren’t the only exporters of mercury; a number of developed nations have existing stocks of mercury available for export, or they act as brokers between primary sources and importing nations.

On the issue of supply, the proposed treaty text bans new primary mercury mining and the export, sale, or distribution of existing mercury (except for the uses listed in Annex D II). While Annex D has been drafted, the specifics of the Annex are still being discussed, as is the question of whether any restrictions will be placed on existing mercury-mining operations.

The proposed treaty text also requires that parties identify all mercury stocks within their territory. However, the threshold size of these stocks is not yet stipulated. We expect that this will be a subject of debate during the remaining days of the negotiations.

In terms of trade, the proposed text mandates that mercury can only be exported for allowable uses, as described by the treaty, or for environmentally sound disposal. It also requires that exporting countries obtain written consent from the recipient country. This section of the text reflects the integration of the Basel Convention, which concerns the global transboundary movement of hazardous wastes, into the mercury treaty. Of particular importance, the proposed treaty text also invokes the principle of “prior informed consent” from the Rotterdam Convention. The specific responsibilities of exporting and importing countries, as well as the extent of guidance that the Conference of the Parties is expected to provide on this front, is and will likely continue to be the source of some interesting discussion among involved parties.

The mercury supply and trade issue is now being discussed in a focused “technical articles” contact group. We hope that delegates are able to make significant progress on this front in the hours ahead so that we can move onto addressing artisanal and small-scale mining, discussing waste and storage, and—ultimately—reaching agreement on an effective global mercury treaty.

Follow us on twitter @markdstaples and @DanyaRumore as we post live updates on the negotiations!

Mercury in Unexpected Products

by Hannah Horowitz

Written by Hannah Horowitz from Harvard University, this is the second in our series of Guest Scientist Blogs. Hannah is a graduate student in Earth and Planetary Sciences at Harvard University and a member of the Atmospheric Chemistry Modeling Group. Her research focuses on the environmental fate of mercury used in products and processes, and modeling the terrestrial mercury cycle.    Email: hmhorow@fas.harvard.edu        Website: http://people.fas.harvard.edu/~hmhorow/

When I first began my research on mercury used in products and processes, I was taken aback to learn that there were over 3000 known applications of the heavy metal [1]. What’s more interesting than the sheer number are some specific products containing mercury that are particularly surprising and unexpected. The vast variety of applications of mercury in the past and present are a result of its many unique chemical and physical properties. Its toxicity makes the disposal of mercury-containing products – some of which we may not realize are in our homes, schools, and businesses – challenging.

Some gym floors can release a lot of mercury.

Some gym floors can release a lot of mercury.

Polyurethane flooring used in school gymnasiums and indoor and outdoor tracks from the 1960s-1985 in the United States contain mercury used as a chemical catalyst [2]. One gym floor in Minnesota released mercury equivalent to breaking 280 compact fluorescent light bulbs per day, even 24 years after its installation [3]. However, measured concentrations and calculated total exposure in gyms tested in Ohio, Michigan, and Minnesota did not exceed levels that would result in health impacts [2, 4] from chronic (long-term) or acute (short-term) mercury exposure: 750 ng/m3 during 16 – 40 hours per week over a year, and 1800 ng/m3 for one hour, respectively [5]. Proper ventilation was key to reducing mercury levels [4]. However, average concentrations in Minnesota gyms were still around 200 times higher than typical outdoor background concentrations of 1.5 ng/m3 [6].

If a gym floor is believed to contain mercury, floor and air mercury concentrations should be measured, with help from the Agency for Toxic Substances and Disease Registry (ATSDR). If recommended exposures are exceeded, time spent in the gym should be limited, ventilation should be increased, and the floor may need to be removed (see [5]). Removal should be done carefully, as disturbing the floor may release more mercury than normal use [4]. Depending on its mercury content, the floor should be treated as hazardous waste or disposed in a lined landfill with leachate collection to prevent environmental releases [4].

Fishing lures

Fish lures can contain mercury.

Fish lures were once made using mercury.

Between the 1920s and the 1950s, fishing lures were made with visible liquid mercury inside to create motion and a shiny appearance to better attract fish [7]. Perhaps these mercury-containing fishing lures helped fishermen become exposed to methylmercury through the fish they successfully caught!

Now, care should be taken to avoid breakage and mercury release from the antique, fragile lures. For proper disposal, they should be brought to a hazardous waste collection program (varying state-by-state in the US) so the mercury can be removed and recycled [7].

Expected use in unexpected places

You can clearly see the mercury in this switch.

You can clearly see the mercury in this switch.

Some of the more typical uses of mercury – electrical switches and relays, lighting, and batteries – are widespread in many products that may be surprising. Mercury switches and relays help ovens and irons (pre-1990) shut off automatically [8, 9], thereby helping to prevent house fires. Similar switches and relays in cars brake with anti-lock brake systems (pre-2004) [10]  help prevent car crashes. However, these mercury-containing products may lead to environmental mercury contamination if their disposal is not handled properly. Electric lighting using mercury is ubiquitous – for example, LCD displays in cameras and sewing machines, UV lamps in printers, or fluorescent lamps in scanners and portable DVD players [8] to name a few. Button cell batteries present in children’s toys, calculators, and watches can also contain mercury [8, 11] and may be imported from other countries with less stringent mercury regulations [11].

The consumer should remove batteries from smaller products and contact their local municipality to find out about household hazardous waste collection services before throwing the object away [7, 12], so that they will not end up landfilled or incinerated along with general waste [13]. Electronics and larger appliances should also be collected if possible, and may be accepted by the original retailer depending on where you live (these services may or may not be free) [7, 12]. In the US, some automobile collection companies partner with End of Life Vehicle Solutions (or are mandated to do so by state law) to remove mercury-containing switches prior to turning the car into scrap metal, in order to prevent mercury emissions [10].

For more information, see the New England Waste Management Association’s mercury legacy products website.

References

  1. Nriagu, J. O. (1979), The biogeochemistry of mercury in the environment, Elsevier/North-Holland Biomedial Press, Amsterdam, the Netherlands.
  2. http://www.newmoa.org/prevention/mercury/projects/legacy/schools.cfm#gf
  3. http://www.newmoa.org/prevention/mercury/conferences/sciandpolicy/presentations/Herbrandson-Bush_Session3B.pdf
  4. http://www.atsdr.cdc.gov/HAC/pha/MercuryVaporReleaseAthleticPolymerFloors/MercuryVaporRelease-FloorsHC092806.pdf
  5. http://www.health.state.mn.us/divs/eh/hazardous/topics/mercury/hgflooringprofguide.pdf
  6. Slemr, F., E. G. Brunke, R. Ebinghaus, and J. Kuss (2011), Worldwide trend of atmospheric mercury since 1995, Atmospheric Chemistry and Physics, 11(10), 4779-4787.
  7. http://www.newmoa.org/prevention/mercury/projects/legacy/sport.cfm#fl
  8. https://imerc.newmoa.org/publicsearch/NEWMOA_IMERC.aspx#/CustomizedSearch
  9. http://www.newmoa.org/prevention/mercury/projects/legacy/appliances.cfm#ci
  10. http://www.newmoa.org/prevention/mercury/projects/legacy/automobiles.cfm#abs
  11. http://www.chem.unep.ch/mercury/GC-23-responses/GOV/Denmark-attachment-mercuryreport2004.pdf
  12. http://www.environment-agency.gov.uk/business/topics/waste/32096.aspx
  13. http://ec.europa.eu/environment/chemicals/mercury/pdf/study_report2008.pdf

 

ASGM and the Illicit Mercury Trade

By: Mark Staples

Artisanal and small-scale gold mining (ASGM) is a source of income for around 15 million miners in the developing world. Mercury is often used to separate and purify the gold from the soil and other sediments in the whole ore, and to pick up small amounts of gold.

Despite the environmental damage and health costs mercury causes, when it is boiled off from the gold-mercury amalgam, this practice is still widespread. Globally, over 700 tonnes of mercury are emitted to the atmosphere from ASGM each year, with over 800 tonnes released to land and water. These local releases can create significant health impacts in nearby communities.

In most developed nations, the use of mercury in industrial processes has tapered off as public awareness of its toxicity has grown. However, high gold prices continue to incentivize ASGM operations. As a result, mercury prices are correlated with gold prices.

This figure is taken from a study by Sippl & Selin, 2012.

This figure is taken from a study by Sippl & Selin, 2012.

Mercury mines are still open, primarily in China, and these sources provide a steady supply of mercury for ASGM operations in the developing world. In fact, a significant proportion of the mercury that is imported to ASGM countries and their neighbors is either mined in, or transported via, developed nations. This study provides some interesting insight into the global flows of primary mercury to ASGM practicing nations.

One of the greatest challenges for understanding the contribution of ASGM to anthropogenic releases of mercury to the environment is a lack of transparency and completeness of data. For example, the United Nations Commodity Trade Statistics Database (COMTRADE), used in a number of analyses of the global flow of commodities like mercury, is voluntary and incomplete. Further, mercury is almost never officially traded for the stated purpose of gold amalgamation, making it harder to track.

While many countries, including China, Brazil, French Guiana and Indonesia, have laws in place to monitor or limit the use of ASGM operations, large volumes of mercury are still imported for gold mining. Mercury is often imported for ostensibly legal use in dental amalgams, but is then made available to miners in chemical or dental shops once inside the country. The ease with which miners can obtain this neurotoxin is alarming.

At the negotiations, delegates focused heavily on ASGM on January 14 at INC5. The proposed text, Article 9, addresses ASGM; parties are debating whether continued use of mercury should be permitted or whether it should be phased out. Brazil, Mali and the Alliance for Responsible Mining (an industry group), all voiced support for the continued, legal international trade of mercury for ASGM. These delegations argued that ASGM is going to happen regardless of the outcome of these negotiations because it occurs in the informal sector. Banning mercury trade would only criminalize an important economic activity in developing nations. Instead of effectively discouraging the international trade of mercury, a phase out of the permissible import of mercury for ASGM might simply force the trade underground.

I’m not so näive as to believe that including a phase-out date for the legal trade of ASGM-destined mercury in the treaty would be entirely effective. In all likelihood, the illicit trade in mercury that already exists will simply grow to fill that gap. However, I do believe that better monitoring and reporting on ASGM-destined mercury, in preparation for a legally binding phase-out, could only aid in getting a handle on this harmful trade and on the extent of ASGM as an informal practice. It would also allow miners and developing nations to transition to alternative ASGM techniques, such as gravity concentration, sluice boxes or cyanidation.

There is clearly some cognitive dissonance in the way in which mercury is traded and used by importing and exporting nations. It seems to me that this is an issue that needs to be resolved to help stem the flow of mercury that is harmful to both human health and the environment. I’m excited to see the progress that will be made on this issue this week.

For more information about ASGM, you can check out the NGO Artisanal Gold Council’s site and the recent report from Human Rights Watch. Here is a short video which explains how ASGM with mercury works:

Forty Years of International Mercury Policy: the 2000s and beyond (Part 3 of 3)

By: Noelle Selin

In previous posts, we looked at the evolution of international mercury policy in the 1970s and 1980s-1990s. By the 2000s, countries began to realize that addressing the mercury problem would require global-scale action.

From the UNEP "Time to Act "report
Timeline of global mercury events from the UNEP “Time to Act” report

The process towards a global treaty began with a scientific assessment report, the 2002 Global Mercury Assessment. A main conclusion of that assessment was that there was sufficient evidence of significant global adverse impacts to warrant international action to reduce the risks to human health and/or the environment arising from the release of mercury into the environment. In 2003, in response to this report, the UNEP Governing Council launched a voluntary programme to address mercury. Between 2003 and 2009, this programme organized a series of awareness-raising workshops, developed guidance and training materials, and established a clearinghouse for mercury-related information. Much of this work was conducted under the auspices of mercury partnerships, which began in 2005 (see our blog post on that topic).

The UNEP Governing Council in 2009 established a mandate to begin negotiations for a global, legally-binding mercury treaty [pdf]. An ad-hoc open-ended working group met to prepare for the beginning of negotiations in 2009 in Bangkok. The Intergovernmental Negotiating Committee process began with a first meeting in Stockholm in June 2010. A second meeting was held in Chiba, Japan in January 2011, a third in Nairobi in November 2011, and a fourth in Punta del Este, Uruguay in July 2012. We are now in Geneva for the fifth and (hopefully) final session, before a treaty is expected be signed in Minamata, Japan in October 2013. More information about the negotiating process to date is available from the Earth Negotiations Bulletin.

Daily Roundup for INC5 Day 3—Tuesday, January 16

by Alice Alpert

Day 3 began with snow falling, turning Geneva into a winter wonderland.

IMG_1678_vdh

Everyone eagerly anticipated the first of the Swiss breaks, to be held in the evening. However, we are no longer “early” in the negotiations, so parties were eager make some progress before the Swiss break festivities began.

Here’s a recap of progress made on different topics.

Products and Processes

The technical articles contact group made progress on setting the mercury concentrations that different types of lightbulbs can contain, although the phase-out dates remain undecided. A breakout group, facilitated by one of the co-chairs, was started to address the controversial dental amalgam issue.

The group is in the midst of working through the annex regarding products and processes that will be exempt from regulation: antiques were removed because they are not being currently manufactured; there will be exceptions for some research and calibration standards (although there is no consensus yet exists on the details); thiomerisol will be allowed as a preservative in vaccines; polyurethane, vinyl chloride monomer, and sodium methylate are still under review. The group discussed the idea of discouraging distribution in commerce as a process provision rather than an outcome provision.

Emissions and Releases

In the morning, a technical group of about 30 attendees was tasked with discussing possible options for characterizing the nature of emissions and releases regulations. The group agreed that it would be useful to narrow the scope of the treaty to major sources, but there was no consensus around the several threshold types discussed (e.g., do you regulate based upon capacity, intensity, or aggregate emissions?).  In the afternoon and evening, the full emissions contact group reconvened and agreed to eliminate certain small-source categories. Into the evening, they were discussing releases, looking to start forming some draft text. Memorably, in response to one delegate’s suggestion that a ton of mercury was a small amount of emissions,  another party replied: “No single raindrop feels responsible for the flood.”

Institutions and Implementation

The treaty objective and definitions were discussed in morning plenary, focusing on whether a dedicated, stand-alone article on health impacts was required or even warranted. The plenary was divided on the issue: one side was of the opinion that a separate health article duplicates other sections of the text and/or impinges upon the effort of the World Health Organization, while the other side sees a stand-alone article as paramount to reaffirming the objective of the treaty. Many NGOs submitted interventions supporting the health article.

Also in plenary, parties showed no movement on how to ensure domestic implementation, with many developing nations saying that a uniform requirement for submitting a plan to meet treaty obligations did not take into account differing national socio-economic conditions. In the evening, a contact group on the implementation and health issues met. Gridlock continued, and a small group decided to work through the night to submit a suitable proposal in the morning.

Financial and Technical Assistance

Much of the work in this area occurred in a small contact group of “friends of the co-chairs”, which continues to discuss Articles 16 and 16bis regarding technical assistance and technology transfer. Article 17—which concerns whether to establish a committee for implementation or for compliance (or both)—was up for discussion in the afternoon plenary session. Several countries voiced the opinion that they would like the membership of and mechanism for decision-making by this group to be specified in the treaty,  rather than by the conference of parties. These specifics will be considered in a contact group set to convene on Day 4.

Supply and Trade, AGSM, and Waste

Work in this area began at 11pm in the technical articles contact group, with a discussion of Article 3 on supply and trade. One of the biggest struggles involved whether existing primary mining should be banned; this decision is still in a deadlock. The group didn’t break until after 1am, and we can expect more work on Day 4.

Highlight of the day

After the second plenary session, the loudspeakers came to life with the song “Under Pressure,” (featuring Freddie Mercury)—just to drive the point home. Then the Swiss break began, providing delicious food, wine, and opportunities for delegates to work out compromises in informal consultations.

IMG_1681_vdh

The Swiss break also notably featured video footage of traditional Swiss culture, including whipcracking and running around in leaf costumes, in addition to skiing and yodeling. While the Swiss music was questionable, the event did not disappoint. We look forward to our second Swiss break this evening, and hope that the negotiations make significant progress in the meantime.

What to Expect from INC5 Day 4–Wednesday, January 16

It’s Day 4, and the negotiating sessions are, according to the current schedule, more than half over! What have the negotiators done with all the time so far? They’ve discovered key areas of disagreement, and forged some progress on text in various groups. The plenary sessions are plodding and/or breezing their way through various articles while contact, technical, and drafting groups untangle the details.

The schedule has become fluid, but we expect:

  • A sunny day, rather than yesterday’s snow.
  • “Under Pressure” on repeat in the plenary before we start the day.
  • A late start to the first plenary.
  • Updates on progress from the groups dealing with “Selected Technical Articles” (a.k.a. the “Mega-Contact Group”), Emissions and Releases (a.k.a. my personal favorite, led by witty UK delegate John Roberts), Health (a.k.a. “Guess WHO*?”),  Technical assistance (a.k.a. “Got Tech?”).
  • A polite and sincere urging from Chair Lugris for these groups to continue their “excellent work.”
  • The Mega-Contact Group chugging along continuously, tirelessly (and sleeplessly).
  • Optimistically: finalizing Article 3, 7, 8, Article 9 (ASGM) and maybe even some work on article 13 (storage and waste).
  • A drafting group to continue work on implementation plans.
  • A drafting group to tackle treaty text addressing releases to land and water.
  • A presentation by BRI-IPEN on mercury hotspots.
  • The legal group to continue their helpful work on reviewing some of the draft articles.
  • A small contact group called “Friends of Health” to discuss how to integrate wording on health into the treaty.
  • Another Swiss Break!

Stay tuned for Mark’s daily wrap-up blog, or follow us on twitter @MITmercury or at #MITmercury to catch all the action.

Interested in particular aspects of the treaty discussions?

An already-outdated snap of the day's schedule

An already-outdated snap of the day’s schedule – it’s a fast paced day!

Follow me, @BeckySaari, @NoelleSelin and @leahstokes for coverage on emissions and releases as the delegates try to tackle some text. Our friends are also tweeting away:

  • @alicealpert and (@jvanderhoop following technical and financial assistance.
  • @Bea_Edwards and @lncz will reflect on products and processes
  • @markdstaples and @DanyaRumore are tracking the hot issues of ASGM, supply, waste and trade.
  • @wolfeyp and @amandagiang tweeting on institutions and implementation!

*NOTE: WHO = World Health Organization

How to Regulate Mercury in 6 Easy Steps
 (Part 3): A Simple Dictionary for Complex Concepts

by Amanda Giang and Philip Wolfe

Amanda and Philip here with a handy guide to navigating the world of intergovernmental negotiations. In Part 2, we looked at the problem of treaty implementation. In Part 3 we define some key concepts and themes when it comes to institutions and implementation.

While most of the documents for INC5 are in English, it can sometimes feel like they are written in an arcane, impenetrable language. It would take an entire dictionary (or at least a decent glossary) to really unravel all of the words and acronyms of the mercury negotiations. Here, to at least get you started, we are going to highlight four terms that will come in handy when thinking about global institutions and treaty implementation.

Bureaucratic politics

Is policy making really just well informed rational parties figuring out what’s best for the common good, or is there also an aspect of it that’s a little less… altruistic? Graham Allison, an influential political scientist, argued that policy decisions are also shaped by power struggles between different actors within a bureaucracy. These actors have different bureaucratic interests, and want to extend their influence where possible. You might not see the term “bureaucratic politics” often in official documents or hear it in floor discussion, but its important to know that it’s a strong undercurrent to the whole proceedings.

How might bureaucratic politics show up in the mercury treaty negotiations? First, there’s a question of who should be (and has the authority to be) responsible for what. For example, can the mercury treaty address health aspects explicitly (Article 20 b, up for consideration), or should this solely be the purview of the World Health Organization? The US, the EU, and Canada have taken a stance against explicitly including health concerns in the treaty, while broadly supporting global health in other domains. Some human rights groups have attacked this position as being more about bureaucratic politics than reasonable decision making in the world’s best interest.

At the level of the treaty itself, how are responsibilities going to be divided amongst committees and subsidiary bodies? What committees are needed (e.g., implementation, compliance, scientific assessment)? Who gets to sit on these committees? The answers to these questions may be as much about bureaucratic politics as they are about mercury pollution.

Common but differentiated responsibilities

In 1992, the UN held a Conference on Environment and Development (often called the Earth Summit), and established a set of 27 principles to guide sustainable global development—the Rio Declaration. One of these principles refers to nations’ common but differentiated responsibilities (CBDR). This phrase has since become a standard part of many environmental treaties and, despite being very compact, it packs a mean punch in terms of political and equity implications. CBDR acknowledges that, while working towards common environmental goals, different parties have different responsibilities for two reasons:

1.     Different states have had different contributions to global environmental degradation. Developed countries have typically, over time, contributed more to environmental degradation than less developed nations as a result of their historical development trajectories and current consumption patterns.

2.     Developed countries command significant financial and technical resources (sometimes due to environmentally exploitative development trajectories).

The Precautionary Principle

Another legacy of the Earth Summit is the Precautionary Principle. The Rio Declaration, principle 15, states: “Where there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environmental degradation.” Since the Earth Summit, the principle has been invoked in many regulatory contexts for both environmental and health reasons, often with slightly different definitions. At its heart though, the principle shifts the burden of proof: those who want to take preventative action don’t need to definitively prove harm. Instead, the burden falls on those conducting potentially environmentally or health threatening activities to prove that their actions are benign.

An interesting procedural note: the Preamble of the text of the mercury treaty regulation has yet to be formally discussed. Currently in the draft text, there is a suggestion for including a reaffirmation of the Precautionary Principle from the Rio Declaration, but there’s no indication of how that reaffirmation could be written.

Transparency

Transparency may be the easiest concept on our list to define, but its no less complex or important in implementing a global regulatory instrument. Transparency is the openness, communication extent, and accountability of signatory states. Transparency promotes regulatory compliance because it allows for coordination between parties, it provides reassurance to certain parties that other parties are following through on their responsibilities, and it disincentives actors from considering non-compliance. The UN highlights the importance of transparency with respect to success of achieving good global governance.

Transparency is a crucial part of the mercury negotiations, especially with respect to reporting and monitoring emissions. One of the issues that remains to be settled is the level of transparency built into the treaty regarding trade. Because some parties involved in the mercury negotiations have ratified the Basel Convention and others have not, trade is likely to be especially tricky to reach agreement on.

Now you’re armed with a couple key terms that, we hope, will help you make sense of the current mercury negotiations. Put this knowledge to work by following our blog and Twitter (@MITMercury) as we track the developments of the INC5.