Fine particles from village air in northern China in winter: Large contribution of primary organic aerosols from residential solid fuel burning

Yinxiao Zhang, Zongbo Shi, Yuanyuan Wang, Lei Liu, Jian Zhang, Jiefeng Li, Yi Xia, Xiaokun Ding, Dantong Liu, Shaofei Kong, Hongya Niu, Pingqing Fu, Xiaoye Zhang, Weijun Li