The north vent towers will be eight meters high, in compliance with regulations for the scenic (Class 1) area, which suggests that the neighborhood might experience the effects of emissions, because the ground level of the area is higher than that of the towers.
北の換気塔の高さは風致地区（第一種）内の規制に合わせた8mになるが、付近の住宅地は換気塔よりも高いため排煙をそのまま受ける可能性が示唆される。