References related to small-scale mining
Appel, P. and Esbensen, K: Reducing global mercury pollution with simultaneous gold recovery from small-scale mining tailings. TOS Forum. Special issue June 2019.
Appel, P.W.U., Andersen, A, Na-Oy, L.D. & Onos, R. 2015: Introduction of Mercury-free Gold Extraction Methods to Medium-Scale Miners and Education of Health Care Providers to Reduce the use of Mercury in Sorata, Bolivia. J. Health and Pollution. December 2015, Vol. 5, No. 9, pp. 12-17.
Appel, P. W. U. & Na-Oy, D. L, 2014: Mercury-free gold extraction using borax for small-scale gold miners. Journ. Environmental Protection, 2014, 5, 493-499
Appel, P.W.U. & Na-Oy, L. 2013: How to mitigate mercury pollution in Tanzania. Journ. Environmental Protection, 4, 1-5
Appel, P.W.U. & Na-Oy, L. 2013: How do we abate the massive release of mercury from small-scale gold mining in Africa. Abstract volume. Compiled by Asfawossen Asrat. 24thColloquium of African Geology (CAG24) Addis Ababa January 2013, p. 297.
Appel, P. W. U. & Na-Oy L: 2012: The Borax method of gold extraction for small-scale miners. Blacksmith Institute Journal of Health Pollution, 2(3): 5-10
Appel, P.W.U., Na-Oy, Hatsukawa, y:, Osawa, T., Kystol, J. & Sørensen, L.L. 2011: Cleaning mercury polluted mine tailings in the Philippines. Danmarks. Grønlands. Geol. Unders. Rap. 2011/127, 39 pp.
Appel, P. W. U. & Jønsson, J. B., 2010. Borax-an alternative to mercury for gold extraction by small-scale miners: Introducing the method in Tanzania. ROSA, Geol. Surv. Denmark and Greenland, 20, 87-90
Perez, E., Appel, P. W. U. & Koester-Rasmussen, R. 2007. Training of small-scale miners and their families in safe handling of mercury during extraction of gold in the Philippines. Improving access to social services: health services and income opportunities for small-scale miners and their families. Danmarks og Grønlands Geol. Undersg. Report 2007/35, 59pp.
Appel, P.W.U., Dyikanova, C., Esengolova, N., Tageva, A. 2003: Baseline survey of artisanal and small-scale mining and Teaching seminars for small-scale miners in Kyrgyz Republic 2003. Geological Survey of Denmark and Greenland Report. 2004/11. 28 pp.
