Lichens and mosses as monitors of industrial activity associated with uranium mining in northern Ontario, Canada—Part 2: Distance dependent uranium and lead accumulation patterns

The variation in concentration (C(d)) of uranium and lead in lichens and mosses with distance (d) from emission sources associated with the mining and milling of uranium conformed to the equation: C(d) = md−n + b. Details for the use of this equation and for the fitting of curves are provided. For uranium in samples from the Elliot Lake sampling macro-transect (54 km in length), n = 1, b = 0; whilst, for the 9·6 km Agnew Lake macro-transect, n …