**6. Conclusion**

From the foregoing discourse, it safe to say that most abattoirs especially those in Lagos generate wastes that are loaded with heavy metals and other pollutants. However, these heavy metals are known to affect the ecosystem vis-à-vis disruption of soil health, excessive accumulation in plants and animals, depletion of water quality and reduction in atmospheric quality. These often have a great impact on the earth biota; thus, efforts should be made on mitigating the effects caused by heavy metal contaminated abattoir wastes through judicious abattoir waste management practices and regulations. Thus, abattoirs in Lagos are hidden sources of heavy metals in plants and other pollutants within the ecosystem.
