Some of the best-known laptops are contaminated with some of the worst toxic chemicals. Of the five top brands we tested [Acer, Apple, Dell, HP, Sony], Hewlett-Packard and Apple laptops showed the worst contamination levels...We have been pressuring leading electronic companies to ditch toxic chemicals in favour of safer alternatives...HP has been downgraded due to these results on our Guide to Greener Electronics...Previous Greenpeace research has revealed that the same toxic chemicals found in these tests are polluting electronic waste (e-waste) scrap yards in China and India. [includes link to full report]