Paragraph 2
Compliance with limit values directed at the protection of human health shall not be assessed at the following locations:—
(a)
any location situated within areas where members of the public do not have access and there is no fixed habitation;
(b)
on factory premises or at industrial locations to which all relevant provisions concerning health and safety at work apply;
(c)
on the carriageway of roads and on the central reservations of roads except where there is normally pedestrian access to the central reservation.