4.1 The following information should be compiled for zones within which sources other than measurements are employed to supplement information from measurement:–
(a)a description of the assessment activities carried out;
(b)specific methods used, with references to descriptions of the method;
(c)sources of data and information;
(d)a description of results, including uncertainties and, in particular, the extent of any area within the zone over which concentrations exceed long-term objectives or target values;
(e)for long-term objectives or target values whose object is the protection of human health, the population potentially exposed to concentrations in excess of the threshold.