Kirti Delhi, India 226 Questions 325 Answers 23 Best Answers 1k Points View Profile Kirti Asked: June 12, 20212021-06-12T12:19:10+05:30 2021-06-12T12:19:10+05:30In: UPSC PRELIMS What is Water Footprint? What is Water Footprint? general Share Facebook 1 Answer Recent Rajnish Optimist 145 Questions 255 Answers 237 Best Answers 1k Points View Profile Best Answer Rajnish Optimist 2021-07-10T03:59:40+05:30Added an answer on July 10, 2021 at 3:59 am Water Footprint: The water footprint measures the amount of water used to produce each of the goods and services we use. It can be measured for a single process, such as growing rice, for a product, such as a pair of jeans, for the fuel we put in our car, or for an entire multi-national company. The water footprint can also tell us how much water is being consumed by a particular country – or globally – in a specific river basin or from an aquifer. The water footprint has three components: green, blue and grey. Together, these components provide a comprehensive picture of water use by delineating the source of water consumed, either as rainfall/soil moisture or surface/groundwater, and the volume of freshwater required for assimilation of pollutants. The Three Water Components: Greenwater water footprint is water from precipitation that is stored in the root zone of the soil and evaporated, transpired or incorporated by plants. It is particularly relevant for agricultural, horticultural and forestry products. Bluewater footprint is water that has been sourced from surface or groundwater resources and is either evaporated, incorporated into a product or taken from one body of water and returned to another, or returned at a different time. Irrigated agriculture, industry and domestic water use can each have a blue water footprint. Greywater footprint is the amount of freshwater required to assimilate pollutants to meet specific water quality standards. The grey water footprint considers point-source pollution discharged to a freshwater resource directly through a pipe or indirectly through runoff or leaching from the soil, impervious surfaces, or other diffuse sources. 0 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Cancel the best answer Leave an answerCancel replyYou must login or register to add a new answer. Related Questions What is E-Waste? Describe Narrow Band-Internet of Things (NB-IoT).