N.C. Gen. Stat. § 160A-185
A city may by ordinance regulate, restrict, or prohibit the emission or disposal of substances or effluents that tend to pollute or contaminate land, water, or air, rendering or tending to render it injurious to human health or welfare, to animal or plant life or to property, or interfering or tending to interfere with the enjoyment of life or property. A city may by ordinance regulate the illegal disposal of solid waste, including littering on public and private property, provide for enforcement by civil penalties as well as other remedies, and provide that such regulations may be enforced by city employees specially appointed as environmental enforcement officers. Any such ordinance shall be consistent with and supplementary to State and federal laws and regulations.
N.C. Gen. Stat. § 160A-185