Soil Factors Driving Uptake of Toxic Elements by Rice and Leafy Greens

Investigating Soil Characteristics

Soil Factors Driving Uptake of Toxic Elements by Rice & Leafy Greens

Investigating how soil characteristics influence arsenic, cadmium, and lead levels in key food crops is key.

Rice and leafy greens are healthy, widely consumed foods but are susceptible to contamination by soil-occurring toxic elements such as arsenic, cadmium, and lead.

Project Objectives
This project will build upon recent work funded by the Food & Chemical Safety Committee that identified a critical need for a deeper understanding of the interrelationships among soil characteristics, mitigation options, and resulting levels of toxic elements in plants and commodities.

The Food and Chemical Safety Committee focuses on many different issues related to the safety of the food supply. To deliver output and impact, the committee works in subgroups focused on specific areas of food and chemical safety. See recent publications and upcoming events to learn more about the committee’s work.

Join Us >

Research Approach

The project will address key questions around how soil concentrations of toxic elements are impacted by soil characteristics to affect potential transfer to crops. It will also investigate the distribution and variability of these elements in specific crops across growing regions.

Project Investigators

Matt Limmer, PhD

University of Delaware

Angela Seyfferth, PhD

Arizona State University

Open Science

Aligned with IAFNS’ commitment to open science practices, this project has been added to the IAFNS Collection on the Open Science Framework. Note: this link redirects you to an external website.

Publications

No results.

WP_Query Object
(
    [query] => Array
        (
            [post_type] => publication
            [posts_per_page] => 5
            [type] => 
            [area] => 
            [committee] => soilfactor
            [authors] => 
            [showtitle] => false
            [meta_query] => Array
                (
                    [relation] => AND
                    [0] => Array
                        (
                            [key] => _ilsi_date
                            [value] => 2021-02-09
                            [compare] => >=
                            [type] => DATE
                        )

                )

            [maxyears] => 5
            [tax_query] => Array
                (
                    [0] => Array
                        (
                            [taxonomy] => ilsi_committee
                            [field] => name
                            [terms] => soilfactor
                        )

                )

            [paged] => 1
            [meta_key] => _ilsi_date
            [orderby] => meta_value
            [order] => DESC
        )

    [query_vars] => Array
        (
            [post_type] => publication
            [posts_per_page] => 5
            [type] => 
            [area] => 
            [committee] => soilfactor
            [authors] => 
            [showtitle] => false
            [meta_query] => Array
                (
                    [relation] => AND
                    [0] => Array
                        (
                            [key] => _ilsi_date
                            [value] => 2021-02-09
                            [compare] => >=
                            [type] => DATE
                        )

                )

            [maxyears] => 5
            [tax_query] => Array
                (
                    [0] => Array
                        (
                            [taxonomy] => ilsi_committee
                            [field] => name
                            [terms] => soilfactor
                        )

                )

            [paged] => 1
            [meta_key] => _ilsi_date
            [orderby] => meta_value
            [order] => DESC
            [error] => 
            [m] => 
            [p] => 0
            [post_parent] => 
            [subpost] => 
            [subpost_id] => 
            [attachment] => 
            [attachment_id] => 0
            [name] => 
            [pagename] => 
            [page_id] => 0
            [second] => 
            [minute] => 
            [hour] => 
            [day] => 0
            [monthnum] => 0
            [year] => 0
            [w] => 0
            [category_name] => 
            [tag] => 
            [cat] => 
            [tag_id] => 
            [author] => 
            [author_name] => 
            [feed] => 
            [tb] => 
            [meta_value] => 
            [preview] => 
            [s] => 
            [sentence] => 
            [title] => 
            [fields] => all
            [menu_order] => 
             => 
            [category__in] => Array
                (
                )

            [category__not_in] => Array
                (
                )

            [category__and] => Array
                (
                )

            [post__in] => Array
                (
                )

            [post__not_in] => Array
                (
                )

            [post_name__in] => Array
                (
                )

            [tag__in] => Array
                (
                )

            [tag__not_in] => Array
                (
                )

            [tag__and] => Array
                (
                )

            [tag_slug__in] => Array
                (
                )

            [tag_slug__and] => Array
                (
                )

            [post_parent__in] => Array
                (
                )

            [post_parent__not_in] => Array
                (
                )

            [author__in] => Array
                (
                )

            [author__not_in] => Array
                (
                )

            [search_columns] => Array
                (
                )

            [ignore_sticky_posts] => 
            [suppress_filters] => 
            [cache_results] => 1
            [update_post_term_cache] => 1
            [update_menu_item_cache] => 
            [lazy_load_term_meta] => 1
            [update_post_meta_cache] => 1
            [nopaging] => 
            [comments_per_page] => 50
            [no_found_rows] => 
            [taxonomy] => ilsi_committee
            [term_id] => soilfactor
        )

    [tax_query] => WP_Tax_Query Object
        (
            [queries] => Array
                (
                    [0] => Array
                        (
                            [taxonomy] => ilsi_committee
                            [terms] => Array
                                (
                                    [0] => soilfactor
                                )

                            [field] => name
                            [operator] => IN
                            [include_children] => 1
                        )

                )

            [relation] => AND
            [table_aliases:protected] => Array
                (
                    [0] => wp_term_relationships
                )

            [queried_terms] => Array
                (
                    [ilsi_committee] => Array
                        (
                            [terms] => Array
                                (
                                    [0] => soilfactor
                                )

                            [field] => name
                        )

                )

            [primary_table] => wp_posts
            [primary_id_column] => ID
        )

    [meta_query] => WP_Meta_Query Object
        (
            [queries] => Array
                (
                    [0] => Array
                        (
                            [key] => _ilsi_date
                        )

                    [1] => Array
                        (
                            [0] => Array
                                (
                                    [key] => _ilsi_date
                                    [value] => 2021-02-09
                                    [compare] => >=
                                    [type] => DATE
                                )

                            [relation] => OR
                        )

                    [relation] => AND
                )

            [relation] => AND
            [meta_table] => wp_postmeta
            [meta_id_column] => post_id
            [primary_table] => wp_posts
            [primary_id_column] => ID
            [table_aliases:protected] => Array
                (
                    [0] => wp_postmeta
                    [1] => mt1
                )

            [clauses:protected] => Array
                (
                    [wp_postmeta] => Array
                        (
                            [key] => _ilsi_date
                            [compare] => =
                            [compare_key] => =
                            [alias] => wp_postmeta
                            [cast] => CHAR
                        )

                    [mt1] => Array
                        (
                            [key] => _ilsi_date
                            [value] => 2021-02-09
                            [compare] => >=
                            [type] => DATE
                            [compare_key] => =
                            [alias] => mt1
                            [cast] => DATE
                        )

                )

            [has_or_relation:protected] => 
        )

    [date_query] => 
    [request] => SELECT SQL_CALC_FOUND_ROWS  wp_posts.ID
					 FROM wp_posts  LEFT JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id) INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id )  INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id )
					 WHERE 1=1  AND ( 
  wp_term_relationships.term_taxonomy_id IN (556)
) AND ( 
  wp_postmeta.meta_key = '_ilsi_date' 
  AND 
  ( 
    ( mt1.meta_key = '_ilsi_date' AND CAST(mt1.meta_value AS DATE) >= '2021-02-09' )
  )
) AND ((wp_posts.post_type = 'publication' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'acf-disabled')))
					 GROUP BY wp_posts.ID
					 ORDER BY wp_postmeta.meta_value DESC
					 LIMIT 0, 5
    [posts] => Array
        (
        )

    [post_count] => 0
    [current_post] => -1
    [before_loop] => 
    [in_the_loop] => 
    [comment_count] => 0
    [current_comment] => -1
    [found_posts] => 0
    [max_num_pages] => 0
    [max_num_comment_pages] => 0
    [is_single] => 
    [is_preview] => 
    [is_page] => 
    [is_archive] => 1
    [is_date] => 
    [is_year] => 
    [is_month] => 
    [is_day] => 
    [is_time] => 
    [is_author] => 
    [is_category] => 
    [is_tag] => 
    [is_tax] => 1
    [is_search] => 
    [is_feed] => 
    [is_comment_feed] => 
    [is_trackback] => 
    [is_home] => 
    [is_privacy_policy] => 
    [is_404] => 
    [is_embed] => 
    [is_paged] => 
    [is_admin] => 
    [is_attachment] => 
    [is_singular] => 
    [is_robots] => 
    [is_favicon] => 
    [is_posts_page] => 
    [is_post_type_archive] => 
    [query_vars_hash:WP_Query:private] => 906ef370608a7db4b489ef02a13c3608
    [query_vars_changed:WP_Query:private] => 
    [thumbnails_cached] => 
    [allow_query_attachment_by_filename:protected] => 
    [stopwords:WP_Query:private] => 
    [compat_fields:WP_Query:private] => Array
        (
            [0] => query_vars_hash
            [1] => query_vars_changed
        )

    [compat_methods:WP_Query:private] => Array
        (
            [0] => init_query_flags
            [1] => parse_tax_query
        )

    [query_cache_key:WP_Query:private] => wp_query:a3a24e929ea7d1b474a469c66064c7f7
)

Other Projects Supported by the Committee

Evidence-Based Risk Assessment of Ingredients and Additives

Ingredient & Additive Risk Assessment Evidence-Based Risk Assessment of Ingredients and Additives This project focuses on the development of a framework to facilitate the risk […]

Soil Factors Driving Uptake of Toxic Elements by Rice and Leafy Greens

Investigating Soil Characteristics Soil Factors Driving Uptake of Toxic Elements by Rice & Leafy Greens Investigating how soil characteristics influence arsenic, cadmium, and lead levels […]

Exposure Characterization of Micro- and Nanoplastics in Foods

FCS and Packaging Committee Project: Exposure Characterization of Micro- and Nanoplastics in Foods The volume of plastics produced globally every year has steadily increased over […]