Dulong School in Lingxi Town, Cangnan County is not good. Dulong School in Lingxi Town, Cangnan County is not good. According to relevant data, Dulong School in Lingxi Town, Cangnan County was suspected of producing and selling food cases in which pathogenic microorganisms, pesticide residues, veterinary drug residues, heavy metals, pollutants and other substances harmful to human health exceeded food safety standards in 2022.