Even the ground water is unfit for drinking due to large-scale application of fertilizers, pesticides and agrochemicals in the tea gardens.
Here, yields have been increased through organic farming techniques, a much cheaper alternative to conventional agrochemicals .
The firms are involved with a range of products including paint, pharmaceuticals, agrochemicals , paper and textile chemicals.
He said his company was making efforts to develop the sector through the provision of the required farm equipment and agrochemicals such as herbicides, pesticides and fungicides.
Other research also points to agrochemicals as a potential risk factor for breast cancer (and other forms of cancer too).
The contaminants are usually the result of the use of agrochemicals , fertilizers, and sprays used to increase crop yields, which then get washed into rivers and reservoirs and hence into drinking water.
Across the globe, biotechnology products such as pharmaceuticals and agrochemicals have been valued at more than $US200-billion this year.
Most would rather do without agrochemicals or genetically modified crops.
Originally this was applied to remote sensing for checking the effects of agrochemicals used by farmers, to increase efficiency and reduce ecological damage.
Input use: large farms tend to use purchased inputs like agrochemicals , while small farms are more likely to use non-purchased inputs, like manure and compost produced on the farm.