CONCLUSION
This study shows that the mangrove forest is a recipient of plastic waste that is brought in by tidal currents. The quantity of each plastic waste that is brought is determined by their level of floatability in aquatic medium. The decomposition of the plastic waste by microbes lead to the increase in the chemical load of the soil which may have negative effect on the growth of young mangrove seedlings. Our laboratory study reveal that seedlings in control soil grew taller than their counterparts in plastc soil. Although the growth difference was not much probably because of the duration of the experiment, however, the result has great implication for the natural enviornment where hazardous plastic components remain in mangrove soils to contaminate organisms consumed by humans such as crsba, periwinkle and fingerlings of fish that spawn and breed in the soil and root of mangovr trees. The study also revealed that R. mangle has greater ability than R. racemosa to grow in polluted soil, which makes it useful in restoration ecology.