Best Wishes,

Dr. Mitra

There is mention about Indian standards for permissible limits for Cd, Cu, Zn, Pb, Cr, Mn, and Ni in the following paper:

http://www.ncbi.nlm.nih.gov/pubmed/16466660

The following paper cited three references with respect to Indian standards, but the references are not clear.

http://pakjas.com.pk/papers%5C38.pdf

The article by Sharma et al (2006) quoted Indian standards from Awasthi SK (2000)

https://www.researchgate.net/publication/6815759_Heavy_Metal_Contamination_in_Vegetables_Grown_in_Wastewater_Irrigated_Areas_of_Varanasi_India

The correct citation may be

Bhatnagar, JP and Awasthi SK (2000) Prevention of Food Adulteration Act (Act no. 37 of 1954) alongwith Central & State Rules (as amended for 1999). 3rd Edition, Ashoka Law House, New Delhi.

The following link may be accessed:

http://www.worldcat.org/title/prevention-of-food-adulteration-act-act-no-37-of-1954-alongwith-central-state-rules-as-amended-for-1999/oclc/59567404

The Indian standards for heavy metals in drinking water may be accessed through the following link:

http://bis.org.in/sf/fad/FAD25(2047)C.pdf

Article Heavy Metal Contamination in Vegetables Grown in Wastewater ...

Respected Borah SIr

I am very much thankful for your kind help. I read all the papers suggested by you. I could not access Awasthi (2000) reference. Can you suggest me, where can i find it?

BIS has not given any such standards

Dear Pattnaik,

This link may be tried, content verified please

http://www.fssai.gov.in/Portals/0/Pdf/pfa%20acts%20and%20rules.pdf

http://www.pcd.go.th/info_serv/en_reg_std_soil01.html

Mr.Pattnaik,the following publications of Dr. Jayant kumar saha,Indian Institute of Soil Science,can be consulted on researchgate site.

1.Screening of soil for assessment of toxicity to organisms.

2.Integrated management of polluted soils for enhanced productivity and quality of crops.

3.Risk assessment of heavy metals in soil of a susceptible agro-ecological system amended with municipal solid waste compost.

The following paper provides general background and suitable extraction methods for assessing the phyto-availability of trace metals in soils.

Evaluation of extractants for estimation of the phytoavailable trace metals in soil by Menzies,N.W and others.Environmental pollution 145(2007)121-130 available online . at www.sciencedirect.com  May be available  on researchgate also.

Respected Rao sir

I am very much thankful for your kind help. The papers you have suggested helped me a lot. Thank you sir

 Respected Borah Sir, I have got a lot of help from your references. Thank you.