SHANGHAI-A solar panel maker who has been violently protested over pollution at a factory in eastern China has apologized and said it will take the necessary measures to clean up the pollution. Jingke Solar Holdings Co. , Ltd. The parent company of the plant in Haining city, west of Shanghai, said in a statement on Monday that preliminary tests indicated that pollutants may have spilled into nearby rivers due to "improper waste storage. After hundreds of villagers protested last week, police detained at least 20 people, some of whom stormed the factory compound and overturned vehicles. Authorities said the plant failed to resolve earlier environmental complaints, which were carried out after heavy fish deaths due to heavy rains at the end of August. Crystal solar, listed on the New York Stock Exchange, said production at the plant had been suspended but could resume in a few days. "The company will take all necessary measures to ensure that it complies with all environmental regulations. "Any environmental protection defects found will be remedied immediately," the company said . ". Haining's protests reflect the dirty side of clean energy. Although the use of solar energy can reduce the need to burn heavily polluting coal and other fossil fuels, a variety of chemicals and materials are used in the process of producing photovoltaic cells, which may also be toxicHaining's protests were followed by a 30-year-old, loosely regulated industrialism in which the public's latest and bolder response to environmental issues. Protests in rural areas and small cities are often canceled or ignored. But people in big cities like Shanghai and near big cities seem to have some impact on leaders who promise to provide a more sustainable, healthier lifestyle and work --Create growth. Last month, 12,000 residents in the northeastern port city of Dalian protested against a chemical plant that local officials promised to relocate. The storm struck the dam that protected the nuclear power plant, and there were fears that the flood would release toxic chemicals. Similar protests in Xiamen in 2007 were also successful. In Shanghai, the authorities suspended operations of one of the world's largest leading companies --Acid battery factory operated by USAS. -Johnson ControlResidents living in industrial zones have complained that dozens of children have several times or more lead content than the legal cap. The company said it did not consider the plant to be the cause of any unsafe lead emissions. The city government reported on Tuesday that seven out of 17 leadersAcid battery plants in 23 million cities were ordered to stop production due to excessive lead emissions. Lead poisoning can hurt nerves, muscles and the reproductive system. Even if the level of exposure is low, children are particularly vulnerable to irreversible harm. The city is expanding its testing to include more children, officials said. Meanwhile, the Shanghai Jinshan District is a huge petrochemical district that has shut down 75 companies due to the health risks of hazardous chemicalsMonthly safety activities