10 Facts About Water Footprint

1. The water footprint of people, families, communities and countries is the total amount of fresh water used to produce goods [including food] and services consumed. In other words, the water footprint is the amount of water needed to maintain water. Individual or family lifestyle, or indeed the world population.

2. The virtual moisture content of food is not the actual nutrient content, but the amount of water spent on food growth, processing, and preparation, and the virtual moisture content to consider when talking about food footprints, for example The amount of water in an apple is 70 liters, orange is 100 g and orange is 50 L. 100g chicken 390L and 100g beef 1600L.

3. If there is wastewater that needs to be treated in the manufacturing process, or waste that needs to be diluted before disposal, the food or product footprint can be significantly increased.

4. Water is called blue when it is surface water or extracted from groundwater, and green when rainwater penetrates.

5. Food can have different footprints depending on where it is produced. For example, if cotton products are produced in China, they have a virtual water content of 5404 m3 / ton, but if they are produced in India, they have a virtual water content of 21563 m3 / ton. Variations depend on rainfall, water available on the soil, the amount of water needed for irrigation, and the amount of water needed to dilute the processing by-products before disposal.

6. Virtual water consumption varies from country to country depending on personal consumption levels in terms of food, goods and services. It is 1245 m3 / person / year in the UK and 2483 m3 / person / year in the United States, three times that of China.

7. The consumption per person of virtual water included in the meal varies depending on the type of meal. 1 m3 / day for survival diet, 2.6 m3 / day for vegetarian diet, 5 m3 or more for US style meat base. diet.

8. Food footprint is often not the country where food is consumed.

9. A country's water footprint is described by the location as either domestic [if the national footprint is within the border] or external when goods are imported and the water used to produce those goods is outside the country I can do it. Country;

10. UK import dependency on water is relatively high at 70%. This is compared to other European countries such as Switzerland [79%], Belgian lux [80%] and the Netherlands [72%], but much higher than France [37%].