Fig 1.
Conceptual framework showing the pathway of generation of plastics and their flow into the oceans.
Fig 2.
Map of Lagos with that of Nigeria inset.
Source: Produced by the authors from Landsat Image Data obtained from United States Geological Survey (USGS) database at www.earthexplorer.usgs.gov.
Table 1.
Definition of explanatory variables used in the model.
Table 2.
Descriptive statistics of variables used in the model.
Fig 3.
Opinion of the respondents regarding environmental problems associated with single-use plastics and how they knew about it.
Given multiple responses, the result shows that most respondents (91.70 percent) indicated that blocking drainage channels was the environmental problem associated with single-use plastics. Also, a high proportion of them believed that blockage of sewage systems (43.50 percent) and pollution of ocean and rivers (40.97 percent) were the problems associated with single-use plastics. Only 1.44 percent of them indicated that forest pollution was one of the problems associated with single-use plastics. This finding suggests that Lagos residents consider blockage of drainage channels, blockage of sewage systems and pollution of oceans and rivers as the main problems associated with single-use plastics.
Fig 4.
Opinion of the respondents regarding the most severe environmental problems associated with single-use plastics.
Table 3.
Result of MNL- determinants of waste disposal approach employed by the households.
Fig 5.
Result of the willingness of the respondents to participate in a cleanup of road gutters/drainage channels program and the number of man-days they are willing to contribute.
Table 4.
Result of Heckman selection model showing the determinants of the willingness of the respondents to participate in the cleanup drainage channels and number of man-days they are willing to contribute.
Table 5.
Mean and standard deviation of corrected coefficients for significant variables in outcome equation that also appeared in the selection equation.