Creosote was widely used and is still used as wood preservative and can therefore be a hazard to the environment. It is therefore necessary to improve the disposal of impregnated railway ties and to check for PAH compounds before taking a new water supply into use in areas where creosote impregnated wood has been handled or stored.
Sandell, E., & Tuominen, J. (1996). The impact of the use and disposal of creosote impregnated railway ties on a freshwater supply area in southern Finland. Polycyclic Aromatic Compounds, 11(1-4), 83-90. https://doi.org/10.1080/10406639608544652