Rafsanjan (, also Romanized as Rafsanjān and Rafsinjān; also known as Bahrāmābād) is a city and capital of Rafsanjan County, Kerman Province, Iran. At the 2006 census, its population was 136,388, in 33,489 families. Rafsanjan is the biggest producer of pistachios in the world. Also one of the biggest copper mines in the world is located there too. In addition the biggest and oldest house of the world is located there. Many famous people were born in Rafsanjan: Mirza Reza Kermani, Ali Akbar Hashemi, Adel Ferdosipour etc. It is Iran's center of pistachio cultivation. It had an estimated population of 134,848 in 2005. Rafsanjan is also a major center of carpet production even though the rugs are sold as Kermani rugs rather than Rafsanjani ones. Another large employer is the nearby Sarcheshmeh copper mines. Geography Rafsanjan is located in south part of the Lut desert, in north-west of Kerman province. The longitude of this city is 56 degrees east and the latitude is 30 degrees south. The Average distance between Kerman and this city is . The city has an airport and railway (Tehran-Bandar Abbas route). Moreover, the altitude is and the land-measurement is approximately . North part of Rafsanjan has a common frontier with Bafgh and Zarand; south part is neighboring with Bardsir and on west side with Anar and Shahre-Babak; finally east side of this beautiful city is neighboring with Kerman and Zarand. Rafsanjan has two seasonal rivers named as Shour and Giouderi. The mountains in the area are part of Zagros range, and Sarcheshmeh and Davaran are the most famous. Climate Rafsanjan has cold and freezing winters as well as hot and dried summers. This city is located in the central part of Iran and this region is desert. The weather is hot in summer and cold in winter, days are warm and nights are cold in general. The average amount of rainfall is annually. Environment Rafsanjan has been exposed to the polluting smoke of Sarcheshme, Khatunabad and Shahrbabak copper smelters. On the other hand, up to 14 pistachio orchards are sprayed every year, as a result, dozens of tons of poison are released in the pistachio orchards of Rafsanjan. The level of arsenic contamination in Rafsanjan water is about ten times the permissible limit, and it is strongly recommended to use authorized water purification devices for drinking water, and to ensure the health of the water