甘肃宣布：幼儿园“血铅”事件，提级调查！

Group 1 - The Gansu Provincial Government has established an investigation team to address the abnormal blood lead levels in children at the Maiji District Heishi Peixin Kindergarten in Tianshui City [1] - The investigation team is led by senior officials from the provincial government and includes representatives from various departments such as the Provincial Commission for Discipline Inspection, Education, Public Security, Ecological Environment, Health, and Market Regulation [1] - Experts from the Ministry of Ecology and Environment and the National Health Commission have been invited to participate in the investigation [1] Group 2 - The results of the investigation and handling will be promptly announced to the public [2]