15.—(1) The Department shall monitor concentrations of other relevant polycyclic aromatic hydrocarbons in addition to benzo(a)pyrene as it thinks fit, including at least the following—
(a)benzo(a)anthracene,
(b)benzo(b)fluoranthene,
(c)benzo(j)fluoranthene,
(d)benzo(k)fluoranthene,
(e)indeno(1,2,3-cd)pyrene,
(f)dibenz(a,h)anthracene.
(2) Monitoring sites shall be located together with sampling points for benzo(a)pyrene.
(3) Monitoring sites shall be selected so that geographical variations and long-term trends in the concentrations of polycyclic aromatic hydrocarbons can be identified.
(4) Monitoring sites shall be selected in accordance with the criteria in Sections I to III of Annex III to Council Directive 2004/107/EC.