Wide Mouth Klean Kanteen Water Bottles

Bisphenol A, commonly abbreviated as BPA, is an organic compound with two phenol functional groups. It is a difunctional building block of several important plastics and plastic additives. With an annual production of 2?3 million tonnes, it is an important monomer in the production of polycarbonate.

Suspected of being hazardous to humans since the 1930s, concerns about the use of bisphenol A in consumer products were regularly reported in the news media in 2008 after several governments issued reports questioning its safety, and some retailers have removed products made of it from their shelves.

Category: File - :Wysypisko.jpg|thumb|A landfill in Poland

Category: File - :Landfill face.JPG|thumb|A landfill in Perth, Western Australia

Category: File - :Landfill.jpg||thumb|A section of a landfill located in Barclay. This is one of Dryden, Ontario's landfills.

Category: File - :South East New Territories Landfill 2.jpg|thumb|South East New Territories Landfill, Hong Kong

A landfill, also known as a dump or rubbish dump (and historically as a midden), is a site for the disposal of waste materials by burial and is the oldest form of waste treatment. Historically, landfills have been the most common methods of organised waste disposal and remain so in many places around the world.

Landfills may include internal waste disposal sites (where a producer of waste carries out their own waste disposal at the place of production) as well as sites used by many producers. Many landfills are also used for other waste management purposes, such as the temporary storage, consolidation and transfer, or processing of waste material (sorting, treatment, or recycling).

A landfill also may refer to ground that has been filled in with soil and rocks instead of waste materials, so that it can be used for a specific purpose, such as for building houses. Unless they are stabilized, these areas may experience severe shaking or liquefaction of the ground in a large earthquake.