Ammonia reduction and dust removal has been made relatively easy with a decentralised air cleaning system, developed and manufactured in Denmark. Although the system is still in its test phase, the results are very promising.

A system developed in the Netherlands has focused on providing an answer to the various 'negatives' associated with pig production.

Since February, a new housing system developed by Nutreco Agriculture has been populated with the first pigs. These animals will be the first to experience the advantages of a unique ventilation system in practice. The highly improved stall climate is claimed to have advantages regarding animal welfare, environment and animal health.

The impact that pig houses have on the environment regarding odour is getting more attention, especially in the high density production areas in Denmark. Biological air cleaning systems are being tested for their effectiveness in reducing the odour from pig houses.

Pig smells are a big issue at the Cibao International Airport, near the city of Santiago de los Caballeros in the Dominican Republic.

Using the latest technology to treat pig waste, pig farmers do not need a centralised pig farming area.

Do producers have a different sense and perception of odours than other people? Will working in pig barns affect their sense for malodours from production facilities? And, will an economic dependency on pig production affect odour perception?

Located in the village of Iggenhausau, Germany, Anton Hartmann had to find a solution to reduce the odour from his pig buildings before permission would be granted for further expansion. Ten years later, the success of his bio filter system has been proven by a test instigated by the German Ministry of Agriculture.

Opponents of a proposed pig processing plant in the Canadian city of Winnipeg, Manitoba have joined forces to set up a NoWinniPig campaign.

A Dutch scientist says that reducing the level of sulphur in pig feed reduces the smell of the animals' manure.