All weeds growing upon streets or sidewalks or upon private property subject to this part within the city limits of the city or in unincorporated areas of the county, which attain such large growth as to become a fire menace when dry, or which are otherwise noxious or dangerous, and any accumulation of trash, rubbish, junk or debris, or any unsightly or dangerous walls, or any abandoned or unsafe construction of any kind or nature, or motor vehicles not in usable condition, or any debris of a burned building, or any abandoned or unused swimming pool, or any abandoned wells or cisterns, may be declared to be a public nuisance by the city governing body or by the county commission, and thereafter abated as provided in this part.