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LDDI: What We Do

LDDI members strive to reduce environmental factors linked to learning and developmental disabilities (LDDs) by translating and making accessible relevant research, fostering collaborative initiatives, providing public education, and engaging in federal and state advocacy efforts related to chemical policy reform and the development of safer consumer products.


LDDI promotes research studies that elucidate associations between chemical exposures and neurological disorders that may be classified as learning and developmental disabilities. This includes promoting the National Children’s Study, NIEHS’s Children’s Environmental Health Research Centers and the need for neurodevelopmental screening and testing of chemicals. Read more about LDDI's policy letters »

In addition, LDDI brings emerging science to lay audiences, “translating” the latest scientific studies for nonscientists. Recent publications include a scientific consensus statement and a variety of practical, science-based publications and resources for LDDI members and the public at large. Learn more about our resources »


LDDI has catalyzed major national initiatives on environmental health by some of the leading LDD organizations in the country:

  1. Healthy Children Project spearheaded by the Learning Disabilities Association of America (LDA).
  2. Environmental Health Initiative established by the American Association on Intellectual and Developmental Disabilities (formerly the American Association on Mental Retardation, AAMR). 
  3. Environmental Health Initiative spawned by The Autism Society of America (ASA) as a result of its engagement with LDDI.
  4. Environmental Health Project developed by the National Association for the Dually Diagnosed (NADD), which also chairs CHE’s Mental Health and Environment Working Group [link]

Public Education

LDDI members have presented at dozens of state, regional, and national conferences of the LDD sectors on topics related to neurotoxicants and LDDs in children and adults. LDDI has also convened or co-sponsored numerous national and state meetings, starting with a major public conference in 2004 held at the National Institutes of Health and including a seminal meeting with the American Association on Intellectual and Developmental Disabilities to draft a national blueprint to eliminate environmental toxicants that may contribute to LDDs. See a full list of past conferences and related materials »

LDDI also produces a variety of practical, science-based publications and resources for LDDI members and the public at large. See our current publications »

LDDI’s work as a champion of protecting children’s environmental health has garnered praise from the US EPA. See recognition award information »

Federal and State Advocacy

LDDI members have advocated for chemical policy reform on state and national levels in order to reduce neurotoxicants found in homes, schools, communities and consumer products. LDDI has submitted several national sign-on letters to federal agencies, and a number of LDDI members are involved in the Safer Chemicals, Healthy Families coalition, which is a diverse partnership of organizations committed to reforming the Toxic Substances Control Act. In addition, LDDI members have promoted green chemistry and pressed for the development and marketing of safer alternatives for materials and products used in our everyday lives. See an archive of activities »


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