Asbestos was widely used in construction, electrical appliances, automobiles, household products, etc. in the early days of Taiwan. The World Health Organization (WHO) has classified asbestos as a first-class carcinogen. In order to make the policy formulation and budgeting related to the removal of asbestos roof tile waste in line with the actual situation , using aerial telemetry technology, to investigate the asbestos building materials on the side of the asbestos tile roof position that was released in 2021years. In this project, mobile phones and UAVs were used to investigate the sides of 5,000 asbestos-tile roofed buildings on site, and the results of the on-site investigation were used to estimate the sides of 230,000 asbestos-tile roofs. Its estimated total area is about 548,565±268,367 square meters, and its estimated weight is about 8,228±4,026 tons. The survey cost of using mobile phones and UAVs in the field is about more than 36 million yuan. In addition, a random sampling census was carried out in Taiwan with four types of buildings including asbestos building materials A, B, C, and D, and the proportion of the census results was used to estimate the number of buildings on the side of asbestos tiles, and the area and weight. The estimated number of buildings is about 155,000, the total estimated tonnage is about 124,000 tons, and the total cost of field investigation is estimated to be at least about 72 million yuan. If want to know the location of the buildings on the side of the asbestos tile more accurately, need to check each building by street and alley, and the cost of the check is about 110 million yuan. This time, the team used mobile phones to investigate the side information of 5,000 asbestos buildings, and the number of surveys was about 80%, indicating that the use of mobile phone surveys should be a feasible way in the future. The team adjusted the function on outdoor asbestos building geographic information management system and developed a on-site survey APP to cooperate with the local environmental protection bureau for on-site inventory operations.

Lateral asbestos building investigation, Outdoor asbestos building geographic information management system, Outdoor asbestos building geographic information management system, Public Participation