砖瓦生产除少数较大型企业外,多数是规模不大的砖瓦窑厂,星罗棋布的分散在广大农村,为建筑业和国民经济的发展发挥了巨大作用。然而不论其生产规模如何,在砖瓦生产过程中均存在粉尘、有害气体以及高温等职业卫生问题,值得引起注意。砖瓦生产的主要原料以易熔粘土为主,页岩、煤矸 In addition to a few larger brick and tile production enterprises, the majority are small-scale brick kiln plant, scattered throughout the vast rural areas for the construction industry and national economic development has played a significant role. However, irrespective of the scale of its production, there are occupational health problems such as dust, harmful gases and high temperatures in the brick and tile production process and deserve attention. The main raw material for brick and tile production is mainly fusible clay, shale and gangue