The World Health Organisation (WHO), asserts that exposure to mercury – even small amounts – may cause serious health problems and it is a threat to the development of the child in utero and early in life (WHO 2017).
Given the extreme dangers associated with illegal mining, it is, indeed, a step in the right direction for President Akufo-Addo to halt the illegal miners, many of whom are said to have been using noxious mercury and cyanide in their mining activities.
There is no gainsaying the fact that the mass destruction of our environment by the recalcitrant illegal miners is outrageous. Therefore, it is extremely baffling to see some bona fide Ghanaians opposing the NPP government’s commendable efforts to halt the activities of the unscrupulous galamseyers (See: Stop chasing illegal miners with soldiers – Mahama to government; citinewsroom.com/ghanaweb.com, 28/04/2018).
It is also appalling to read the Former National Democratic Congress (NDC) Member of Parliament for Akwatia, Baba Jamal’s isolated thinker’s assertion that the NDC will walk over the governing New Patriotic Party(NPP) in the 2020 general elections following the perceived rejection of their policies by spare parts dealers, especially those in Abossey Okai and illegal miners (See: Galamseyers will give NDC 1m votes, spare parts dealers 500k votes in 2020 – Baba Jamal; kasapafmonline.com/ghanaweb.com, 08/09/2018).
If you may recall, a few months ago, former President Mahama shockingly pontificated: “But if we put a blanket ban and send soldiers after the young people that is not the way to go. As you stop illegal small-scale mining, at the same time you must put in place a livelihood package so that as you are displacing people from illegal mining, they have something to do…. But when there is nothing to do but you are just chasing them, shooting them, it is not the way to go.”
If we are to draw an adverse inference, Ex-President Mahama and his NDC apologists are suggesting somewhat bizarrely that the security personnel should cease chasing armed robbers and other obdurate criminals with guns and rather offer them alternative livelihoods. How pathetic?
Isn’t it extremely worrying that in addition to stealing our natural resources, the illegal miners are gleefully polluting our lands and sources of drinking water with noxious mercury and cyanide?
In a new Communities and Small-Scale Mining (CASM) publication, Somit Varma, director of the Oil, Gas, Mining & Chemicals Department of the World Bank/IFC, stated: "The social and economic characteristics of small-scale mining fully reflect the challenges facing the world, including: health, environment, gender, education, child labour, and poverty eradication."
There is no denying the fact that mephitic mercury use in artisanal and small-scale gold mining is extremely harmful and its health effects on society are significantly worrying (WHO, 2017).
It is estimated that about 15% of the world's gold is produced by artisanal and small-scale miners, many of whom use mercury and other toxic substances to extract the minerals from rivers and underneath the ground (BBC, 2013).
“Unlike some other West African countries, Ghana allows mercury use in mining. Mercury is freely available in shops and can be bought with a canister, bottle, or as a ball wrapped in a plastic cling film, and much of it has been brought in by Chinese miners.
“Ghana has an estimated one million small-scale gold miners (Galamseyers), and they commonly use mercury to process gold.
“They mix the mercury with the ore to create a gold-mercury amalgam, and then burn the mercury off so the raw gold remains.
“The problems stemming from mercury use don’t stop at exposure from inhalation. Once used for gold processing, mercury-contaminated water is often dumped on the ground, polluting Ghana’s rivers and lakes, and poisoning its fish and those who eat them (HRW, 2014).”
A typical example of toxic mercury contamination impacting negatively on public health happened in Minamata, Japan, between 1932 and 1968, where a factory producing acetic acid discharged waste liquid into Minamata Bay.
The discharge included high concentrations of methylmercury. The bay was rich in fish and shellfish, providing the main livelihood for local residents and fishermen from other areas.
Many years passed without no one realising that the fish were contaminated with mercury, and that it was causing a strange disease in the local community and in other districts.
It was however reported that at least 50 000 people were affected to some extent and more than 2000 cases of Minamata disease were identified.
Unfortunately, Minamata disease escalated in the 1950s, with severe cases of brain damage, paralysis, incoherent speech and delirium (WHO, 2017).
“Minamata disease, also known as Chisso-Minamata disease, is a neurological syndrome caused by severe mercury poisoning. Symptoms include ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the field of vision and damage to hearing and speech. In extreme cases, insanity, paralysis, coma and death follow within weeks of the onset of symptoms. A congenital form of the disease can also affect foetuses” (See: www.bu.edu/sustainability/minamata-disease).
As a bio-accumulative and toxic pollutant, when released into the atmosphere, mercury dissolves in water laid sediments and it can be consumed by fish and then ended up in the food chain of humans (Merem, Wesley, Isokpehi et al. 2016).
In that sense, toxic mercury pollution poses an enormous public health hazard and environmental risk (Merem, Wesley, Isokpehi et al. 2016).
Through extant research study, it has been established that mercury exposure can happen in the environment as well as in occupational and domestic settings (WHO, 2017).
As part of the prevailing quagmire, mercury poisoning involves the condition instigated by exposure at an accelerated dosage which could augment fatal
health effects on communities.
Interestingly, however, it has been identified that exposure to mercury could crystallise in several ways, including, inter alia, dental amalgam fillings and the consumption of contaminated sea food, and more importantly, the dangers of mercury exposure can happen in and outside of built environments. As a result, most individuals are mainly exposed to methyl mercury, an organic compound when they consume fish containing methyl mercury (Merem, Wesley, Isokpehi et al. 2016).
Methylmercury also biomagnifies. For example, large predatory fish are more likely to have high levels of mercury as a result of eating many smaller fish that have acquired mercury through ingestion of plankton.
People may be exposed to mercury in any of its forms under different circumstances. However, exposure mainly occurs through consumption of fish and shellfish contaminated with methylmercury and through worker inhalation of elemental mercury vapours during industrial processes (WHO, 2017).
Exposure to mercury
All humans are exposed to some level of mercury. Most people are exposed to low levels of mercury, often through chronic exposure (continuous or intermittent long term contact).
However, some people are exposed to high levels of mercury, including acute exposure (exposure occurring over a short period of time, often less than a day). An example of acute exposure would be mercury exposure due to an industrial accident.
Exposure in the womb can result from a mother's consumption of fish and shellfish. It can adversely affect a baby's growing brain and nervous system.
The primary health effect of methylmercury is impaired neurological development. Therefore, cognitive thinking, memory, attention, language, and fine motor and visual spatial skills may be affected in children who were exposed to methylmercury as foetuses.
The second group is people who are regularly exposed (chronic exposure) to high levels of mercury (such as populations that rely on subsistence fishing or people who are occupationally exposed).
Among selected subsistence fishing populations, between 1.5/1000 and 17/1000 children showed cognitive impairment (mild mental retardation) caused by the consumption of fish containing mercury. These included populations in Brazil, Canada, China, Columbia and Greenland (WHO, 2017).
The political project
It is worth emphasising that the persistent emission of mercury into the environment from human activity, the evidence of mercury in the food chain, and the demonstrable adverse effects on the health of humans are of such concern that in 2013, governments reached consensus on the Minamata Convention on Mercury (UN 2013).
The Minamata Convention obligates Parties to the Convention to take a number of pragmatic actions, including addressing mercury emissions to air and to do away with certain mercury-containing products.
In January 2013, the intergovernmental negotiating committee closed its fifth session by reaching a consensus on the draft of the Minamata Convention on Mercury.
Subsequently, the document was adopted by the Conference of Plenipotentiaries on 10 October 2013 in Japan and was opened for signature from then on.
The objective of the Convention is to protect human health and the environment from anthropogenic emissions and releases of mercury and mercury compounds and it sets out a range of measures to meet that objective.
These include measures to control the supply and trade of mercury, including setting limitations on certain specific sources of mercury such as primary mining, and to control mercury-added products and manufacturing processes in which mercury or mercury compounds are used, as well as artisanal and small scale gold mining.
The Minamata Convention also addresses interim storage of mercury and its disposal once it becomes waste, sites contaminated by mercury as well as health issues (UN 2013).
In ending, we would be most grateful if the political players who are engaging in political gimmicks and playing down the dangers associated with illegal mining could study the Minamata Convention on Mercury and revise their notes on illegal mining accordingly.
A bibliography of extant resources:
Merem, E. C., Wesley, J., Isokpehi, P., Nwagboso, E., Fageir, S., Nichols, S., Crisler, M., Shenge, M., Romorno, C., Hirse, G. (2016), The Growing Issue of Mercury Exposure and the Threats in the African American Community, Frontiers in Science, Vol. 6 No. 1, pp. 1-16. doi: 10.5923/j.fs.20160601.01.
Swiderski, R. M. (2008), Quicksilver: A History of the Use, Lore and Effects of Mercury: McFarland.
Wotipka, M. C. and Tsutsui, K. (2008) “Global Human Rights and State Sovereignty: State Ratification of International Human Rights Treaties, 1965-2001”,
Sociological Forum, (Vol. 23, No. 4) pp. 724-754.
United Nations (1969) The Vienna Convention on The Law of Treaties. (Online) Available: legal.un.org/ilc/texts/instruments/english/conventions/1_1_1969.pdf
Send your news stories to and features to . Chat with us via WhatsApp on +233 55 2699 625.