How do I manually calculate my water footprint?
The Water Footprint of a product = the sum of the Water Footprints of the process steps taken to produce the product (considering the whole production and supply chain). 2. The Water Footprint of a consumer = the sum of the Water Footprints of all products consumed by the consumer.
How is a water footprint calculated?
The water footprint of a process is expressed as volumetric flow rate of water. That of a product is the whole footprint (sum) of processes in its complete supply chain divided by the number of product units.
Which type of water footprint requires the largest withdrawals?
The Big Water Footprint of Food and Agriculture Agriculture accounted for the majority of those withdrawals, and it accounts for approximately 80 to 90 percent of the nation’s consumptive water use. In fact, agricultural withdrawals account for 69 percent of water use around the world.
What is water footprint assessment?
Water Footprint Assessment is a four-phase process that quantifies and maps green, blue and grey water footprints, assesses the sustainability, efficiency and equitability of water use and identifies which strategic actions should be prioritised in order to make a footprint sustainable.
What is a water footprint and how is it calculated?
Your water footprint is the amount of water you consume in your daily life, including the water used to grow the food you eat, to produce the energy you use and for all of the products in your daily life – your books, music, house, car, furniture and the clothes you wear.
What is the best way to reduce water footprint?
Broadly speaking, you can reduce your direct water footprint by:
- turning off the tap while brushing your teeth.
- using water-saving toilets.
- installing a water-saving shower head.
- taking shorter showers.
- only washing your clothes when necessary.
- fixing household leaks.
- using less water in the garden and when cleaning.
What is the average water footprint per person?
There are large differences in the water footprint of consumption of nations. In the USA, the average water footprint per year per capita is as much as the water needed to fill an Olympic swimming pool (2 842 cubic metres), that is an average of 7 786 litres of water per person per day.
How do I calculate how much water I use?
Your general water requirements can be determined using your current body weight. Most people need to drink roughly half to two-thirds of their weight (in pounds) in ounces. For example, a 200-pound adult needs approximately 150 ounces of water each day.
What is the GREY water footprint?
Grey water footprint is the amount of fresh water required to assimilate pollutants to meet specific water quality standards.
What factors affect water footprint?
The factors that affect water footprint are:
- Total volume of consumption, which is generally related to gross national income of a country. ( eg.
- Water-intensive consumption pattern such as high consumption of meat.
- High consumption of industrial goods.
- Climate.
- Water-inefficient agricultural practice.
What is the average water footprint?
2480 m3/cap/yr
The USA appears to have an average water footprint of 2480 m3/cap/yr, while China has an average footprint of 700 m3/cap/yr. The global average water footprint is 1240 m3/cap/yr.
What are 3 actions you can take to reduce your water footprint?
Is there a manual for the water footprint?
Many individuals and organisations have asked the Water Footprint Network for a manual that contains a complete, consistent and up-to-date overview of the method of water footprint assessment. This report offers such a manual. It covers a comprehensive set of methods for water footprint accounting.
Why is the water footprint important in agriculture?
Management of water resources plays a key role in the sustainability of agricultural production. The water footprint (WF) is different in comparison to other water statistics because it takes direct and indirect water consumption into account, and helps in the management of water resources.
What do you mean by green water footprint?
The green water footprint refers to consumption of green water resources (rainwater stored in the soil as soil moisture). The grey water footprint refers to pollution and is defined as the volume of freshwater that is required to assimilate the load of pollutants based on existing ambient water quality standards.
How big is the water footprint of beef?
The average water footprint per calorie for beef is 20 times larger than for cereals and starchy roots. The water footprint per gram of protein for milk, eggs and chicken meat is 1.5 times larger than for pulses.