Meghan Hodges
Georgia's shores and waterways are facing a number of pollution issues. The state's economy is largely based on industries such as agriculture, mining, and manufacturing, which has led to a depreciation in air quality. While overall air quality is improving, with emissions of key air pollutants declining since 1990, and certain cities like Cartersville falling into the 'good' air quality bracket, Georgia still faces a number of challenges. Its cities have several months a year when PM2.5 counts are significantly higher than the yearly average, and pollutants such as nitrogen dioxide, sulfur dioxide, carbon monoxide, and ozone are prevalent in the air. In addition, Georgia's waterways are affected by toxic chemical dumping, with the state ranking 13th in the nation for this issue. Lake Lanier, for example, is Georgia's most polluted lake, suffering from sewage discharge, farm and home runoff, and algae blooms. The Georgia Coast, a 100-mile stretch of diverse and ecologically important shoreline, is also threatened by plastic pollution, boating and shipping emissions, and incompatible development and forestry practices.
| Characteristics | Values |
|---|---|
| Major sources of pollution | Vehicular emissions, boating and shipping, incompatible development and forestry practices, hardened shorelines, sea level rise, climate change, invasive species, and plastic pollution |
| Specific pollutants | Nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), black carbon, silica dust, volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons, rubber or plastic particles, heavy metals (e.g., mercury, lead), dioxins, furans, PFAS (polyfluoroalkyl substances) |
| Affected areas | Cumberland to Tybee, Savannah, Brunswick, St. Simons, Altamaha River Delta, Lake Lanier, and various rivers and tributaries |
| Environmental impacts | Increased ocean acidity, degradation of coral and shellfish, declining fish populations, soil and water pollution, health risks for coastal communities |
| Initiatives to address pollution | The Nature Conservancy's Georgia Coast Project, local environmental groups and initiatives, adoption of low-carbon fuel, increased energy efficiency, carbon capture/storage |
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What You'll Learn
Air pollution from vehicles and industry
Georgia's economy is largely based on industries such as agriculture, mining, and manufacturing. The state has a massive population and a high level of industrial activity, which has led to a depreciation in air quality. The cities of Tbilisi and Cartersville, for example, have had high air pollution readings. Tbilisi is, in fact, one of the most polluted cities in the world, with pollution levels 2.9 times higher than the norm.
Vehicular emissions are a major cause of air pollution in Georgia. With a high number of vehicles on the road, large amounts of exhaust fumes are released. The rising number of vehicles on the road, including heavy-duty vehicles like trucks and lorries, has led to an increase in air pollutants.
In addition to vehicle emissions, industrial emissions from large industrial zones and the construction sector also contribute significantly to air pollution in Georgia. The state's heavy pollution levels have been linked to increased risks of heart and lung diseases for residents.
While Georgia struggles with air pollution, there are signs of improvement. Between 1990 and 2017, emissions of key air pollutants decreased by 69 percent, while the state's gross domestic product increased by 283 percent. This indicates that economic growth can be achieved while reducing pollution levels.
To further mitigate air pollution, Georgia can focus on innovative fuel sources and energy efficiency. Low-carbon fuel, carbon capture, and electric power sources can reduce emissions from vehicles and industry. Individual actions, such as donating to local environmental groups and reducing personal emissions, can also contribute to improving air quality in Georgia.
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Water pollution from boating and shipping
Georgia's 100-mile coast is a source of beauty and ecological and cultural diversity. However, the health of the environment and the people who live in these coastal communities is negatively impacted by boating and shipping activities.
The U.S. Environmental Protection Agency (EPA) has identified several environmental impacts of boating and marinas, which contribute to water pollution. These impacts include high toxicity in the water, increased pollutant concentrations in aquatic organisms and sediments, and increased erosion rates. Boat maintenance and the discharge of sewage from boats can also lead to water pollution. For example, during boat maintenance, solvents, paints, oils, and other pollutants can enter the groundwater or be washed directly into surface water. The chemicals and metals in antifouling paint can harm bottom-dwelling organisms, and small oil spills from motors and refuelling activities can persist in aquatic ecosystems, harming marine life.
In addition, individual boats and marinas can release small amounts of pollutants that, when multiplied by thousands of boaters and facilities, can cause distinct water quality problems in lakes, rivers, and coastal waters. Marinas that are poorly planned can disrupt natural water circulation, cause shoreline soil erosion, and lead to habitat destruction.
To reduce water pollution from boating and shipping, proper marina planning and informed boating practices are essential. Boaters should use non-toxic cleaning products and maintain their boats away from the water to prevent pollutants from entering aquatic ecosystems. Marinas should be located and designed to promote natural flushing and renew marina waters.
While boating and shipping contribute to water pollution in Georgia, other sources of pollution, such as plastic pollution and industrial facilities releasing toxic chemicals, also play a significant role in degrading the state's beaches, coastal lands, and waterways.
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Plastic pollution and degradation of beaches
Georgia's coast is a diverse and ecologically rich habitat, with a strong cultural significance for the communities that call it home. However, it is facing significant environmental threats, particularly from plastic pollution and the degradation of its beaches and coastal lands.
Plastic pollution is a widespread problem along Georgia's coast, impacting both remote and populated areas. A study by the Skidaway Institute of Oceanography found that beach clean-up programs collected substantial amounts of plastic debris across various islands, with Tybee Island, Little Tybee Island, Turner's Creek, and Pigeon Island being the most affected. The study also revealed that plastic pollution is not limited to human recreational waste, as microplastics, resulting from the breakdown of larger plastic objects, are prevalent in the water column and pose a significant threat to marine life.
The durability of plastics contributes to their persistence in the environment, and their small size can be harmful to marine animals. Fish and other marine organisms may ingest plastics, leading to blocked digestive systems and the consumption of harmful contaminants. The impact of microplastics on the marine ecosystem is not yet fully understood, but their presence in the food chain is a growing concern.
Plastic pollution also has direct implications for human health. Microplastics can seep into soil and water sources, exposing humans to harmful chemicals through various consumption routes. These chemicals have been linked to adverse effects on reproductive, endocrine, and nervous systems. Additionally, plastic pollution contributes to climate change, as single-use plastic items are made from fossil fuels and synthetic chemicals.
To address plastic pollution and degradation of beaches, Georgia has implemented initiatives such as the Georgia Coast Project, which aims to conserve the state's diverse coastal ecosystems. Cities like South Fulton and Clarkston have enacted bans on single-use plastic bags and containers to reduce waste and protect the environment. These efforts are crucial in mitigating the impact of plastic pollution on Georgia's coast and in ensuring the health and sustainability of its unique ecosystems.
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Lake Lanier: Georgia's most polluted lake
Georgia's one-hundred-mile coast is known for its beauty and ecological and cultural diversity. However, the state's shores are not immune to pollution. One of the most notable cases is Lake Lanier, officially known as Lake Sidney Lanier, which has been dubbed one of the ten most polluted lakes in the United States.
Lake Lanier is a well-known body of water located in Gwinnett County, in the northern portion of Georgia. It was formed after the construction of the Buford Dam along the Chattahoochee River, a project completed in 1956. The lake was created to provide a water supply and flood control for the state. Despite its popularity for recreational activities like swimming, boating, and fishing, Lake Lanier has a long history of pollution.
The lake has been plagued by pollution for decades. As early as 1991, a report found that Lake Lanier was inundated with phosphorus, nitrogen, and other oxygen-demanding pollutants. More recently, in 2008, data from the Chattahoochee Riverkeeper (CRK) revealed that the lake was not meeting water quality standards due to excessive nutrient pollution. This prompted the development and adoption of a cleanup plan by the EPD, which has had limited success due to poor enforcement.
Lake Lanier continues to face pollution from various sources. Agricultural runoff, sewage discharge, and residential and farm waste consistently contaminate the lake. These pollutants contribute to excessive nutrient levels and harmful algae blooms, which can impact the taste and odour of the lake's water, including the drinking water it provides. The lake is also susceptible to bacteria and other pollutants after heavy rainfall, which has occasionally led to no-swim warnings.
The pollution in Lake Lanier has had ecological, environmental, and health consequences. The lake is home to various fish species, including striped bass and largemouth bass, which attract anglers from across the state. However, the excessive nutrients and pollutants can have detrimental effects on aquatic life and contribute to the degradation of the lake's ecosystem. Additionally, the pollution in Lake Lanier can impact the health of nearby communities, particularly those who rely on the lake for drinking water and recreational activities.
While Lake Lanier is Georgia's most polluted lake, it is important to recognize that the state's other coastal areas also face environmental challenges. Georgia's coast is threatened by incompatible development, forestry practices, shoreline hardening, sea-level rise, climate change, invasive species, and water management issues. These challenges underscore the urgent need for conservation efforts and sustainable practices to protect the state's fragile ecosystems and the communities that depend on them.
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Health risks of pollution for coastal communities
Georgia's 100-mile coast is known for its ecological and cultural diversity. However, the beauty of the Georgia coast masks the significant pollution issues that threaten the health of coastal communities. From Cumberland to Tybee, the Georgia coast is a bustling hub of activity, with boats anchoring at beaches and container ships cruising into the deepwater ports of Savannah, one of the busiest ports in the United States. While the port system is essential for economic prosperity, it also negatively impacts the environment and the health of coastal residents.
The maritime industry contributes significantly to carbon dioxide emissions and global greenhouse gas emissions. Ocean acidity has increased by 30% since the Industrial Revolution, impairing the ability of marine life like coral and shellfish to form and sustain shells and exoskeletons. This has a domino effect on the entire marine ecosystem, leading to a decline in fish and other marine animal populations, which are crucial food and income sources for many Georgians. The pollution from boating and shipping not only damages marine life but also endangers the health of coastal communities, particularly those near bustling ports.
Heavy pollution in these areas increases the risks of heart and lung diseases and causes water and soil contamination that infiltrates drinking water and food sources. Low-income communities and communities of color are often disproportionately affected by these health issues. Additionally, plastic pollution poses a significant threat to wildlife, and the chemicals leached from plastic can have harmful impacts on human health.
To safeguard the health of coastal communities, it is essential to balance economic success with environmental sustainability. This can be achieved through conscious adjustments to shipping habits and the adoption of innovative fuel sources, such as low-carbon fuel, increased energy efficiency, carbon capture and storage, and electric power sources. Individual actions, such as donating to local environmental groups, staying informed about personal emissions, and advocating for a healthy Georgia coast, are crucial steps towards a sustainable future.
While Lake Lanier is a popular destination for boating and swimming, it has been named one of the most polluted lakes in Georgia due to excessive pollution from runoff, sewage discharge, and fertilizer use. The lake's pollution has impacted the drinking water supply, causing an odd odor and taste. Various government organizations are working to reduce pollution in Lake Lanier and protect the health of nearby communities.
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Frequently asked questions
Georgia's shores experience significant pollution from a variety of sources. The state's coastal communities, such as Savannah and Brunswick, are particularly affected by boating and shipping activities, which contribute to increased carbon dioxide emissions and ocean acidification. Additionally, Georgia's shores face pollution from plastic waste, agricultural runoff, and industrial wastewater.
The main sources of pollution on Georgia's shores include boating and shipping activities, which contribute to carbon dioxide emissions. Additionally, plastic pollution, agricultural runoff, and industrial wastewater are significant contributors. Georgia's shores also face pollution from incompatible development and forestry practices, hardened shorelines, sea level rise, and invasive species.
Pollution on Georgia's shores has negative impacts on both the environment and human health. Increased ocean acidity inhibits the ability of marine organisms, such as coral and shellfish, to form and maintain shells and exoskeletons. This has a domino effect on the entire marine ecosystem, leading to declining populations of fish and other marine life, which are crucial for food and income for many Georgians. Additionally, pollution contributes to increased risks of heart and lung diseases in coastal communities and can contaminate drinking water sources.
