| zinc and lead poisoning in wild birds in the tri-state mining district (oklahoma, kansas, and missouri). | the tri-state mining district (oklahoma, kansas, and missouri) is contaminated with pb, cd, and zn from mining, milling and smelting. metals have been dispersed heterogeneously throughout the district in the form of milled mine waste ("chat"), as flotation tailings and from smelters as aerial deposition or slag. this study was conducted to determine if the habitat has been contaminated to the extent that the assessment populations of wild birds are exposed to toxic concentrations of metals. amer ... | 2005 | 15657812 |
| quantitative analysis of the extent of heavy-metal contamination in soils near picher, oklahoma, within the tar creek superfund site. | the tri-state mining district of missouri, kansas and oklahoma was the site of large-scale mining operations primarily for lead and zinc until the mid-1950s. although mining across the area has ceased, high concentrations of heavy metals remain in the region's soil and water systems. the town of picher, ottawa county, ok, lies within this district and was included in the tar creek superfund site by the u.s. environmental protection agency in 1980 due to extensive contamination. to elucidate the ... | 2017 | 28063319 |