There has been a drop in numbers letting the council know about people stockpiling rubbish for bonfires.
Teams are on standby to confiscate tyres, wood and other junk to keep people safe over Halloween.
However, Dublin City Council says there has been a "significant" fall in numbers contacting it.
Spokesperson Angela Walsh said she is "hopeful" that people will continue to report bonfire materials.
"If not, hopefully it is a case that there are less stockpiles out there", she told 98FM News.
Primary school children from Jobstown are being shown the damage a banger can do @DubFireBrigade @events_DCC pic.twitter.com/9HPXDIEScH
— Emma Tyrrell (Ní Riain) (@EmmaNiRiain) October 25, 2019
It comes as Dublin Fire Brigade demonstrates the dangers of fireworks to 6th class children.
Teams blew the hand off a mannequin using a banger this afternoon, as students from St Thomas’ in Jobstown watched on.
Chief Fire Officer Dennis Keeley said there have already been injuries from fireworks this year.
"Injuries to hands and fingers, but we will see from this weekend that things will start escalating", he said.
Dublin Fire Brigade dealt with 30 calls yesterday alone, as they get ready for what's expected to be another busy Halloween.
Last year, crews dealth with more than 900 calls on October 31st.
Each year, they also have to battle against attacks on their teams and vehicles attending emergencies.
Dublin City Council is encouraging people not to buy fireworks and to attend one of its planned events instead.
