VOA慢速英语20060403a
时间:2019-01-30 作者:英语课 分类:2006年慢速英语(四)月
DEVELOPMENT REPORT - A Small Packet of Chemicals, a Big Effect on Dirty WaterBy Jill Moss 1
Broadcast: Monday, April 03, 2006
I'm Steve Ember with the VOA Special English Development Report.
Scientists have developed a water treatment system that they say is a powerful but simple way to save lives. Four grams of chemicals can treat ten liters of dirty water for a low cost, about ten cents.
Experts say infections from dirty water kill several thousand children in developing countries every day.
The Procter and Gamble company has been developing the PUR Purifier of Water system since nineteen ninety-five. The company has been working with the United States Centers for Disease Control and Prevention.
C.D.C. researchers tested it in Guatemala, Pakistan and Kenya. Procter and Gamble researcher Greg Allgood says cases of diarrhea in those studies fell by about fifty percent.
Procter and Gamble scientist Greg Allgood adds a PUR chemical treatment to a container of dirty water, Feb. 14, 2006
Researchers from Johns Hopkins University in Maryland tested the system at a refugee camp in Liberia. Mister Allgood says that study found a reduction of more than ninety percent.
Use of the system is being expanded worldwide. Findings were described last week at an American Chemical Society meeting.
A small container holds the d safe to drink twenty minutes later.
The treatment contains bleach 2 to kill disease-causing organisms. It also contains ferric sulfate which dirt and other particles stick to. Mister Allgood says the chemicals can remove lead and other dangerous metals and even agricultural poisons like D.D.T.
Mister Allgood heads the Children's Safe Drinking Water program at Procter and Gamble. He says about forty million packets of the treatment have been given to countries for free. They have been used in emergencies and in areas with limited supplies of clean water.
Clean water is a limited resource in many parts of the world. Delegates from about one hundred thirty nations attended the Fourth World Water Forum 3 last month in Mexico City. Scientists, policy experts and others discussed ways to provide clean water to the world's poor. Organizers say more than twenty percent of the world population lacks clean drinking water.
The final declaration did not go so far as to declare water a human right. But it did say that governments, not private companies, must take the lead in improving the public's ability to have clean water.
This VOA Special English Development Report was written by Jill Moss. I'm Steve Ember.
- Moss grows on a rock.苔藓生在石头上。
- He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。
- These products don't bleach the hair.这些产品不会使头发变白。
- Did you bleach this tablecloth?你把这块桌布漂白了吗?