Engineered stone high in crystalline silica, which can damage the lungs when inhaled, has faced growing scrutiny as countertop cutters have grown ill and died from silicosis. Some companies that ...
The bacteria were then mixed with the QD–glutaraldehyde mixture and the excess QDs were removed by ultrafiltration Direct bacterial counting with a detection limit of 3 × 10 2 CFU/ml (10–20 ...