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In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
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Measuring objective knowledge of potable recycled water.

Dana Mahmoud-Elhaj1, Braden Tanner1, David Sabatini2

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Public acceptance of recycled drinking water increases with objective knowledge. This study developed a reliable measure of recycled water knowledge, finding it a key predictor of acceptance, outperforming subjective knowledge and disgust. This tool can evaluate educational interventions.

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Area of Science:

  • Environmental Science
  • Public Health
  • Water Resources Management

Background:

  • Declining availability of reliable clean drinking water sources.
  • Recycled water as a potential supplementary drinking water supply.
  • Low public acceptance of potable recycled drinking water.

Purpose of the Study:

  • To develop and validate a measure of objective knowledge about recycled drinking water.
  • To assess the relationship between objective knowledge and acceptance of recycled drinking water.
  • To evaluate the potential of knowledge measurement for assessing educational interventions.

Main Methods:

  • Development of a 34-item objective knowledge measure for recycled drinking water.
  • Conducting three studies with sample sizes of 229, 590, and 200 participants.
  • Statistical analysis to determine the predictive power of objective knowledge compared to other factors.

Main Results:

  • The 34-item measure demonstrated reliability in assessing objective knowledge of recycled drinking water.
  • Objective knowledge was a significant and unique predictor of intentions to accept and use recycled drinking water.
  • Objective knowledge predicted acceptance more strongly than subjective knowledge or disgust.

Conclusions:

  • Objective knowledge is a crucial factor influencing public acceptance of recycled drinking water.
  • The developed knowledge measure can effectively evaluate educational interventions designed to boost acceptance.
  • Increased objective knowledge may be a viable strategy to improve public perception of recycled water programs.