1. https://www.nst.com.my/world/2018/11/436113/gas-leak-caused-deadly-blast-china-olympic-city (Date of last access: 24/03/2019).
2. https://www.independent.co.uk/news/world/asia/fukushima-nuclear-disaster-radiation-lethal-levels-leak-japan-tsunami-tokyo-electric-power-company-a8190981.html (Date of last access: 24/03/2019).
3. https://www.cost.eu/wp-content/uploads/2019/07/COST_ActionBooklet_2019.pdf (Date of last access: 16/02/2020).
4. Dispersion modelling of air pollutants in the atmosphere: a review;Leelőssy;Cent. Eur. J. Geosci.,2014
5. Operational prediction of ash concentrations in the distal volcanic cloud from the 2010 Eyjafjallajökull eruption;Webster;J. Geophys. Res. Atmos.,2012