Lead concentrations and isotope ratios in blood, breastmilk and feces: contribution of both lactation and soil/dust exposure to infants in a lead mining area, Kabwe, Zambia

Haruya Toyomaki, John Yabe, Shouta M.M. Nakayama, Yared Beyene Yohannes, Kaampwe Muzandu, Tiza Mufune, Hokuto Nakata, Yoshinori Ikenaka, Takeshi Kuritani, Mitsuhiro Nakagawa, Kennedy Choongo, Mayumi Ishizuka