A microcosm experiment was designed to evaluate the effects of different levels of paint-derived tributyltin (TBT), and different modes of exposure, on the diversity, feeding mode and assemblage structure of estuarine nematodes.
Last year's Velázquez exhibition at the National Gallery featured several pictures that the painter had not completed; they had great lacunae or only one level of paint.
Yet doing something she considered "as sissy as working with threads," Albers raised her textiles to the level of painting with spare abstract designs that were a radical departure from the decorative floral patterns or figural narratives of European tapestries.
There are higher levels of pigment in good quality paint, meaning that a single stroke is all that is required while 2-3 may be needed to get a solid coat of paint with a cheap paint.
The U.S. government banned lead paint for residential use in 1978, after nearly a century of scientific studies linked low levels of the paint to low IQ, learning disorders, sociopathic behavior and other maladies.
Mr. Armstrong said he was not told that his son was being introduced to elevated levels of lead paint dust.
Mattel announced a global recall of 848,000 toys last night, the company's third recent recall because of hazardous levels of lead paint on toys.
In 1994, Department of Education investigators found that the district was renting an elementary school infested with rats and containing asbestos and high levels of lead paint.
Lee Der Industrial, a contract manufacturer based in southern China, was responsible for producing the toys that contained excessive levels of lead paint in the first recall.
This week, for instance, Beijing officials said they were investigating Mattel's recall of hundreds of thousands of toys that the company found to have excessive levels of lead paint.
