Hello. In the next link below you can find your question. Enjoy. Emilio.

http://www.tandfonline.com/doi/abs/10.1080/15320383.2014.907238

Ms.Karthica,please see the following researchgate links which discussed similar topics

http://www.researchgate.net/post/Does_any_one_know_the_permissible_limits_of_heavy_metals_in_soils

http://www.researchgate.net/post/Does_any_one_know_the_permissible_limits_of_heavy_metals_Mn_Mg_Cr_Pb_Ni_and_Cu_in_soils

http://www.researchgate.net/post/What_is_the_permissible_levels_of_heavy_metals_in_soil_plant_and_water

http://www.researchgate.net/post/What_is_the_heavy_metal_P_Cd_Ni_Cr_limit_in_soil_

Hi Natarajan,

Your question is very ambiguous and you need to refine it.  Permissible limits vary according to regions and countries. There are permissible limits recommended by WHO/FAO, EU, SEPAC (China), EPA (USA) and some individual countries. So, the answer to your question depends on your objective of the use of the permissible limits and your regions. Your country, perhaps might have permissible limits also.

Permissible limits of heavy metals in Soil ?.  there are many soils and many heavy metals.. Permissible limits always for particular purposes and well defined,  For example each crop may have different permissible limits of heavy metals. Simultaneously each soil  may have different types of heavy metals. 

Hi Karthika

As some of the respondents have pointed out - there are many kinds of limits depending on jurisdiction and purpose. Broadly in contaminated land work, there are ecological based limits (those that might affect soil biological processes or plant function) and health based limits  (those that may through various pathways - dust, leaching to groundwater etc -  affect human health). The US NOAA has provides a useful summary of some of these standards (US and other sources). http://response.restoration.noaa.gov/cpr/sediment/squirt/squirt.html

In Australia, the standards are built around a risk base approach and so health based limits differ according to land use and likely exposure pathways. Ecological limits are also based on perceived risk (ecological risk). The ecological limits (for some elements) also take into account the properties of the soil (pH, CEC, clay content) and this can mitigate toxicity and also allows for correction for background concentrations (it is accepted that organisms will be adapted to background concentrations). http://www.scew.gov.au/nepms/assessment-site-contamination

So in effect the ecological limits use what is known as an added contaminant limit approach. These standards were developed from some innovative work conducted by CSIRO for assessing safe levels of metals additions to soil from biosolids applications. http://www.clw.csiro.au/publications/science/2009/sr43-09.pdf

Happy reading.

Andrew

Ms.Karthika

I agree with the comments of Mr. Butler and Mr. Kumar Saxena. Find attached an article on the determination of heavy metals in some Cuban soils, which can serve as reference.

I wish you all the best in your research.

Table 2: World Health permissible limits for some heavy metals in ppm

file:///C:/Users/M.%20PC/Downloads/heavy%20metal%204%20(5).pdf

Dear Karthika,

As far as I know MoEF or CPCB has not given any permissible limits of heavy metal in soil unlike other countries like EU, USA etc. You can consider WHO or FAO guidelines for comparison. You must know the baseline data in your location as it differs from state to state in India

Ms.Karthika,the following reference provides the regulatory standards of heavy metals in soils of several countries.

Heavy metal contamination of soils:Sources,indicators and assessment  by He,Z .et al. 2015.

Journal of Environmental Indicators,9:17-18.Open access: www.environmentalindicators.net

scholars.uwindsor.ca/cgi/viewcontent.cgi?article=10208&context..

thanks for all your response and answers..want permissible limits of heavy metals in soil especially chromium in india?

thanks for all your response and answers..want permissible limits of heavy metals in soil especially chromium in india?

thanks for all your response and answers..want permissible limits of heavy metals in soil especially chromium in india?

Dear Karthika Natarajan,

Clear guideline or permissible limit for heavy metals has not published by any regulatory body such as EPA, WHO or FAO, yet. But Ministry of the Environment, Government of Japan, as a reputed environmental body has published a Environmental Quality Standards for Soil Pollution and it shows guideline valves for Cd, Cr, As, Hg, Cu, Se and B. So you can use that guiding for your comparison.Please visit web give below for further details. I have used those for my references.

https://www.env.go.jp/en/water/soil/sp.html

Piyal

May be this article helpful for the information you want. Kindly check the link.

http://em.rdcu.be/wf/click?upn=KP7O1RED-2BlD0F9LDqGVeSKPoSdRNRDm6YcfEbeWdCwE-3D_ez-2BNFLKLYW8Fw3p0uajl-2BUR-2B45iApXUNJJjrlX9rDqjmcQ5JS5DkUO2gtsAZ3sF-2Bmwg29hbtMbJkgcdKhiiHWbnvKPdWg4yNNjHeHcV6KC21Snhejh0solE8R7TX2x-2Fov1VUtmueVQlBatEz5yhg0JV1M3dXvn9Z0SQrmA5wdDaOZVryn24qFGTw8ns0Ltee6ch44Oe-2B8MH8n4O0HhD31smRwUp4P5VJ7uiv4gVUpzmoszC95fz-2F5sopOK9OzMrWtCuNNil1WjZKkGltAiSaJA-3D-3D

I recommend Himadri's answer

Best Regards

follow

https://www.env.go.jp/en/water/soil/sp.html

Learning!