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SOIL POLLUTION ( Ambassador Report for April 2022) |
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by Prince Foley | 01-04-2022 17:16
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Soil is a finite resource, meaning its loss and degradation is not recoverable within a human lifespan. Soils affect the food we eat, the water we drink, the air we breathe, our health and the health of all organisms on the planet. Without healthy soils we wouldn’t be able to grow our food. In fact, it is estimated that 95 percent of our food is directly or indirectly produced on our soils.
Healthy soils are the key to food security and our sustainable future. They help sustain food production, mitigate and adapt to climate change, filter water, improve resilience to floods and droughts and so much more. Yet, an invisible threat is putting soils and all that they offer at risk. Soil pollution causes a chain reaction. It alters soils’ biodiversity, reduces soil organic matter and soils’ capacity to act as a filter. It also contaminates the water stored in the soil and groundwater, and causes an imbalance of soil nutrients. Among the most common soil pollutants are heavy metals, persistent organic pollutants and emerging pollutants – like pharmaceutical and personal care products. Soil pollution is devastating to the environment and has consequences for all forms of life that encounter it. Unsustainable agricultural practices that reduce soil organic matter can facilitate the transfer of pollutants into the food chain. For example: polluted soil can release contaminants into the groundwater, which goes on to accumulate in plant tissue, and is then passed to grazing animals, birds, and finally to the humans that eat the plants and animals. Pollutants in soil, groundwater and in the food chain can cause a variety of diseases and excess mortality in humans, from short-term acute effects, such as intoxications or diarrhea to long-term chronic effects, like cancer. Beyond the impact on the environment, soil pollution also has high economic costs due to the reduction of crop yields and quality. The prevention of soil pollution should be a top priority worldwide. The fact that the vast majority of pollutants are a result of human action means that we are directly responsible for making the necessary changes to ensure a less polluted, more secure future. Soils need to be recognized and valued for their productive capacities as well as their contribution to food security and the maintenance of key ecosystem services. Here are just a few reasons why soil pollution can’t be underestimated: 1. Soil pollution affects everything. The food we eat, the water we drink, the air we breathe – our health and the health of all the organisms on the planet is dependent on healthy soil. The nutrient content of a plant’s tissues is directly related to the nutrient content of the soil and its ability to exchange nutrients and water with the plant’s roots. 2. Soil pollution is invisible. Today, one third of our soils are moderately or highly degraded due to erosion, loss of soil organic carbon, salinization, compaction, acidification and chemical pollution. It takes about 1 000 years to form 1 cm of top soil, meaning that we won’t be able to produce more soil within our lifetime. What we see is all there is. Yet, soils are facing even more pressure from soil pollution. The current rate of soil degradation threatens the capacity of future generations to meet their most basic needs. 3. Soil pollution affects soils’ capacity to filter. Soils act as a filter and buffer for contaminants. The potential of soil to cope with the strain of pollutants is finite. If soil’s capacity to protect us is exceeded, contaminants will (and do) seep into other parts of the environment – like our food chain. 4. Soil pollution affects food security by reducing crop yields and quality. Safe, nutritious and good quality food can only be produced if our soils are healthy. Without healthy soils, we won’t be able to produce enough food to achieve #ZeroHunger. 5. Soil pollution can be a result of poor agricultural practices. Unsustainable agricultural practices reduce soil organic matter, compromising soils’ capacity to degrade organic pollutants. This increases the risk of the pollutants being released into the environment. In many countries, intensive crop production has depleted the soil, jeopardizing our ability to maintain production in these areas in the future. Sustainable agricultural production practices have therefore become imperative for reversing the trend of soil degradation and ensuring current and future global food security. 6. Soil pollution can put our health at risk. A significant proportion of antibiotics, used widely in agriculture and human healthcare, are released into the environment after being excreted from the organism to which they were administered. These antibiotics can seep into our soils and spread throughout the environment. This creates antimicrobial resistant bacteria, which decreases the effectiveness of antibiotics. Each year around 700 000 deaths are attributable to antimicrobial resistant bacteria. By 2050, if not tackled, it will kill more people than cancer, and cost, globally, more than the size of the current global economy. With a global population that is projected to exceed 9 billion by 2050, our current and future food security hinges on our ability to increase yields and food quality using the soils that we already have available today. Soil pollution negatively impacts us all, and has been identified as one of the main threats to soil functions worldwide. We need to be aware of the causes of soil pollution so that we can create and implement solutions. Soil protection and conservation starts with us. Making sustainable food choices, properly recycling dangerous materials like batteries , composting at home to reduce the amount of waste that enters landfills or managing antibiotic waste more responsibly, are just a few examples of how we can be part of the solution. On a larger scale, we need to promote sustainable agricultural practices in our communities. Healthy soil is a precious, non-renewable commodity that is increasingly threatened by destructive human behaviours. We are responsible for the soils that provide us with food, water and air, and we need to take action today to ensure that we have healthy soils for a sustainable and food secure future. Be the solution to soil pollution. References http://www.fao.org/about/meetings/global-symposium-on-soil-pollution/en/ Duarte, A.C., Cachada, A. & Rocha-Santos, T., eds. 2018. Soil pollution: from monitoring to remediation. London, United Kingdom, Academic Press, an imprint of Elsevier. 296 pp. FAO and UNEP. 2021. Global Assessment of Soil Pollution: Report. Rome.
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7 Comments
Thank you Nayoung
Posted 10-08-2022 16:22
Thank you so much for the useful information!
Posted 02-08-2022 03:03
Thank you to you my mentors Joon and Chelwoon respectively, i appreciate
Posted 07-04-2022 01:38
Hello Prince, this is your mentor Chelwoon.
There are several types of organic matters. One of them is persistent organic pollutants. Most types of organic matter are helpful, but persistent organic pollutants are not. Microorganism in soil decomposes organic matter, however persistent organic pollutants, such as pharmaceutical products, cannot be decomposed. Of course, they will end up being decomposed, but it will take a very long time before it happens. Meanwhile, it will cause adverse effects. As you have mentioned, soil pollution affects everything. Most of the foods we eat, especially fruits and vegetables, are grown with the help of nutrients coming from the soil. And it provides habitats for flora and fauna! That is the reason why we should prevent soil pollution.
Thank you for the article!
Regards,
Chelwoon
Posted 06-04-2022 05:44
Hello Prince, this is your mentor Joon.
Soil pollution is closely interrelated with all the other types of pollution. The most fearful part is that, as mentioned in the article, it is invisible. We do not know, or hard to know, where it happened and it is hard to estimate the consequences of it as it is simmered all the way to the ground water. Once it reaches ground water, it has infinite possibility to spread. That is why it is crucial that we control Soil Pollution before it is polluted. Proper restrictions should be made and proper measures to catch the ones violated the restrictions are required.
Well read your article, and let's keep up!
Best,
Joon
Posted 05-04-2022 00:48
Hello Justice, yeah sure let's take all measures to protect our soil. Warm green cheers from Malawi 🇲🇼
Posted 04-04-2022 18:09
Thanks for sharing this piece, measures to be taken to prevent this phenomenon has been spelt out.
Green Cheers form Ghana!
Posted 04-04-2022 10:22