What is the water footprint of fish?
The production-weighted average footprint of freshwater fish is 3.16 L g−1 (0.38; [2.47, 3.95]), whereas the footprint of marine fish is 1.49 L g−1 (0.19; [1.15, 1.88]). Differences in feeds contribute to the variation in footprints between freshwater and marine aquaculture.
What is the water footprint of 1 kg rice?
According to WaterAid India’s Beneath the Surface: The State of the World’s Water 2019 report, producing one kilogram (kg) of rice requires about 2,800 litres of water, while a kg of wheat requires 1,654 litres of water.
How much water does it take to produce 1 kg of meat?
IME state that to produce 1kg of meat requires between 5,000 and 20,000 litres of water whereas to produce 1kg of wheat requires between 500 and 4,000 litres of water. The table below shows typical values for the volume of water required to produce common foodstuffs.
How is 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.
How do you calculate water footprint in food?
The Water Footprint Network (WFN) has calculated how much water it takes – called a water footprint – for a large number of food items.Table 1. Water Footprint of Eight Common Food Items. Food Item Serving Size Water Footprint Ham (pork) 3 ounces 135 gallons Eggs 1 egg 52 gallons Soda 17 ounces 46 gallons.
How much water does an average farm use?
The average amount of water applied per acre was 1.5 acre- feet, down from 1.6 in 2013. Five states – California, Nebraska, Arkansas, Texas, and Idaho – together accounted for 50 percent of U.S. irrigated acres in 2018 and 56 percent of total irrigation water applied.
How much Litres is the water footprint for 1 kg cane sugar?
For 1 kg of refined sugar from SUGAR CANE we require about 1500 litres of water. Sugar cane consumes about 220 billion cubic meters of water annually, which is 3.4 % of the global water use for crop production.
What is the water footprint of an apple?
The virtual water of an apple is relatively low at 125 liters per apple when compared to a product like a mango that takes 310 liters of water to produce or a watermelon that takes 1,175 liters of water.
What is the water footprint of a tomato?
The results showed that the WF of tomatoes ranged from 37 to 131 m3 water/ton tomatoes with an average of 61 m3/ton. The WF variation depended mainly on crop yield, local agro-climatic and soil conditions. The green, blue, and grey WF components averaged 13, 27 and 21 m3/ton, respectively.
How many Litres of water does it take to produce 1kg?
It takes about 1500 litres of water to produce 1 kilogram of wheat, and it takes an astounding 10 times more to produce the same amount of beef. A kilo of bananas will set you back roughly 790 litres.Water World. Foodstuff Quantity Water consumption, litres Apple 1 kg 822 Banana 1 kg 790 Potatoes 1 kg 287 Milk 1 x 250ml glass 255.
How much water does a cow drink?
These may be good guesses, but the answer is the modern dairy cow. A milking dairy cow drinks about 30 to 50 gallons of water each day. During periods of heat stress water intake may double. Water weighs 8.35 lbs/gal, so a milking dairy cow may consume as much as 420 (or more) pounds of water daily.
How much water does a cow use?
Cows consume an average of 3 to 30 gallons of water per day. While this is just a general range, effective water consumption can be calculated by adding 1 gallon of water per 100 pounds of the cow during cold weather, and 2 gallons per 100 pounds during hot weather.
How do you calculate water per kg?
As a general rule, you can use this simple calculation. Water (in litres) to drink a day = Your Weight (in Kg) multiplied by 0.033. For example, if you are 60kg, you should drink about 2 litres of water every single day. At 90kg, you’ll around about 3 litres of water.
Why do we calculate water footprint?
The water footprint helps to show the link that exists between our daily consumption of goods and the problems of water depletion and pollution that exist elsewhere, in the regions where our goods are produced.
How do I calculate how much water I use?
How to Calculate How Much Water You Should Drink A Day Your weight: The first step to knowing how much water to drink every day is to know your weight. Multiply by 2/3: Next you want to multiply your weight by 2/3 (or 67%) to determine how much water to drink daily.
How much water is in a slice of bread?
1 slice of bread requires 11 gallons of water. Most of this water is for producing wheat (see below). 1 pound of wheat requires 132 gallons of water. 1 gallon of beer requires 68 gallons of water, or 19.8 gallons of water for 1 cup.
What is a virtual water footprint?
Virtual water, also called “embedded water” or “indirect water,” is the water “hidden” in the products, services and processes people buy and use every day. For the purposes of Water Footprint Calculator, virtual water is used interchangeably with indirect water.
What is green water footprint?
Green water footprint is water from precipitation that is stored in the root zone of the soil and evaporated, transpired or incorporated by plants. Grey water footprint is the amount of fresh water required to assimilate pollutants to meet specific water quality standards.