Initial figures from the FRAs for 2019 indicate there were 566 deliberate grass fires in April this year compared to 1,292 in April 2015, a reduction of 56%.
Mae ffigurau cychwynnol yr Awdurdodau Tân ac Achub ar gyfer 2019 yn dangos y bu 566 o danau glaswellt bwriadol ym mis Ebrill eleni o'i gymharu â 1,292 ym mis Ebrill 2015, sef gostyngiad o 56%.