T/ZYCX 002.2-2018: Environmental Conditions for the Production of Green Tea in Zunyi City

Scope

Scope: This standard specifies the terms and definitions of the environmental conditions of the production areas of "Zunyi Green" green tea, the requirements for site selection, the quality of the soil in the production areas, the environmental air quality and irrigation water requirements, and the evaluation principles. This standard applies to the production areas of "Zunyi Green" green tea. Main technical content: 1. The production areas of "Zunyi Green" green tea should be selected in tea-producing regions with good ecological conditions, far from urban areas, industrial and mining areas, main transportation routes, and industrial pollution sources, and with sustainable production capabilities. 2. Site conditions: The site conditions of Zunyi Green tea gardens include annual rainfall, monthly rainfall, relative humidity, organic matter, effective soil layer thickness, and slope/degree. 3. Environmental air quality in the production areas: The environmental air quality of Zunyi Green tea gardens includes total suspended particulate matter (standard state), carbon monoxide (standard state), sulfur dioxide (standard state), nitrogen dioxide (standard state), fluoride (standard state), lead (standard state), ozone, particulate matter (particle size ≤ 10 μm), particulate matter (particle size ≤ 2.5 μm), nitrogen oxides (NOx), and benzo[a]pyrene (BaP) (μg/m3). 4. Environmental quality of soil in the production areas: The environmental quality of the soil in Zunyi Green tea gardens includes cadmium, mercury, arsenic, lead, copper, chromium, zinc, nickel, and DDT. 5. Irrigation water: The water quality requirements for irrigation water in Zunyi Green tea gardens include pH value, total cadmium, total mercury, total arsenic, total lead, chromium, and fluoride.

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