Numbers of secondary fires in all 3 Welsh FRAs have seen substantial falls since 2001-02; 70% in South Wales, 66% in North Wales and 64% in Mid and West Wales.
Mae nifer y tanau eilaidd ym mhob un o’r 3 Awdurdod Tân ac Achub yng Nghymru wedi gostwng yn sylweddol ers 2001-02; 74% yng Ngogledd Cymru a’r De a 63% yng Nghanolbarth a Gorllewin Cymru.