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Soil and dust sampling completed in December 2014 by the company found elevated levels of arsenic, cadmium, cobalt, hexavalent chromium, lead and nickel in residential neighborhoods in a 0.2-square-mile area around the facility.
A total of 450 households were selected randomly through multistage sampling completed a semi-structure questionnaire.
67 participants recruited using random and purposive sampling, completed a questionnaire measuring illness beliefs, fatalism, health outcomes and demographics; 37 participants completed a social network survey interview and semi-structured interviews.
The resources available to collect actual home and personal exposure samples are limited, with most of the home sampling completed on periodic visits and the personal sampling generally limited to biomonitoring.
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The British sample completed the General Health Survey, which measured the presence of twelve signs of psychological distress.
Half the sample completed a questionnaire on health behaviors and mental health indicators.
Participants from both samples completed the Spanish version of the Zuckerman Kuhlman Personality Questionnaire (ZKPQ).
Fifty-nine percent of the sample completed an 11th grade education or less, and 59% completed high school or college.
Students in our sample completed questionnaires designed to assess their perceived social support, self-esteem, academic achievement, and emotional exhaustion.
In each center a representative sample completed a self-administered screening questionnaire composed of nine dichotomous items.
High proportions (85 95%) of both samples completed the questionnaires but compliance with the intervention was low in the elderly group.
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CEO of Professional Science Editing for Scientists @ prosciediting.com