One out of every 10 local households has at least one member suffering from an environment-related disease, the Ministry of Environment said Friday. According to research conducted between Oct. 16 to 30 on 1,000 adults nationwide, 10.5 percent said they or their family members have an ``environmental disease'' such as eczema, hay fever or asthma. Such diseases are caused by pollutants in the air and man-made structures, which build up in the human body.