Bronte Wells
Pollution has been a problem since the emergence of our earliest ancestors, with air pollution recognised as a threat to human health since Hippocrates, around 400 BC. However, the Industrial Revolution in the 18th and 19th centuries brought environmental pollution as we know it today, with the large-scale use of coal, smog, and soot causing serious health issues for residents of growing cities. While death rates from total air pollution have declined in recent decades, air pollution remains a leading risk factor for death, contributing to one in ten deaths globally. This paragraph will explore the history of pollution, focusing on key years when pollution and its impacts were at their worst.
| Characteristics | Values |
|---|---|
| Year | 1969 |
| Reason | Chemical waste released into Ohio's Cuyahoga River |
| Industrial pollution | |
| Population growth | |
| Rapid economic expansion | |
| Industrial Revolution | |
| Unregulated waste dumping | |
| Impact | Waterways and natural resources were destroyed |
| Air pollution | |
| Water pollution | |
| Soil pollution | |
| Health issues and premature deaths | |
| Location | Ohio, United States |
| China | |
| India | |
| Pakistan |
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Industrial Revolution
The Industrial Revolution, which began in the mid-18th century, introduced new technologies that led to faster production and consumption of materials. This revolution, which started in the UK and spread across Europe and North America, had a profound impact on the environment, marking the start of our intensive use of fossil fuels, particularly coal.
The rapid growth in coal combustion in developing cities substantially increased emissions of SO2, NO2, NH3, and smoke. The problem of air pollution during this period was largely focused on human health, with emissions from industrial development and the rapidly growing urban population of factory workers who burned coal for warmth and cooking. London's concentration of suspended particulate matter rose dramatically between 1760 and 1830, and pollution in Manchester was noted as "the lurid gloom of the atmosphere that overhangs it". Air pollution continued to rise in the 1800s, causing respiratory illnesses and higher death rates in areas that burned more coal.
The Second Industrial Revolution, from the late 19th to the early 20th centuries, introduced electricity, steel production, and the internal combustion engine. This phase drove mass production and the growth of heavy industries, leading to exponential increases in energy consumption and resource extraction. Each phase of industrialization added to the cumulative environmental strain, causing significant increases in air pollution, deforestation, and greenhouse gas emissions. As industrial revolutions progressed, urbanization intensified, and cities expanded rapidly to accommodate the growing workforce needed for factories. These urban centres became heavily industrialized but also increasingly polluted.
The environmental consequences of the Industrial Revolution were not fully understood until many years after it began. While the revolution brought about rapid economic growth and technological advancements, it also led to severe pollution and the exploitation of natural resources, causing long-term damage to the environment. Waterways were polluted with oil and debris from improper industrial practices, and the burning of coal in factories contributed to air pollution. The Great Smog of 1952, caused by a combination of coal burning and an anticyclone weather event, blanketed London with thick smog, emitting an estimated 1,000 tonnes of smoke particles and 2,000 tonnes of carbon dioxide each day. This event, along with the Cuyahoga River fires in 1969, spurred grassroots activism and led to the creation of legislation to address air and water pollution.
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Cuyahoga River fire
Pollution has been a problem since the earliest appearance of our ancestors. During the Middle Ages, diseases such as cholera and typhoid fever broke out across Europe due to unsanitary conditions caused by human and animal waste. Even in 400 BC, Hippocrates suggested that illness was related to air quality.
The Industrial Revolution, which began in the early 19th century, further exacerbated pollution-related issues. The transition to new manufacturing processes, the rise of the mechanised factory system, chemical manufacturing, and iron production all contributed to worsening pollution.
One notable incident of pollution occurred in June 1969, when the Cuyahoga River in Cleveland, Ohio, caught fire due to an oil slick on its surface. This fire caused approximately $100,000 worth of damage to two railroad bridges. While the 1969 fire drew initial local and national attention, it was not an isolated incident. The Cuyahoga River had caught fire numerous times before, dating back to the beginning of the 20th century. The river's pollution was a result of decades of industrial waste, and the fires symbolised years of environmental neglect.
The 1969 Cuyahoga River fire, however, became a pivotal moment in raising awareness about pollution. It sparked grassroots activism and led to a wave of federal legislation aimed at addressing air and water pollution. The fire also contributed to the establishment of the Environmental Protection Agency in 1970 and influenced the passage of the Clean Water Act of 1972. The event changed public perception, and the Cuyahoga River became a symbol of environmental degradation, no longer accepting pollution as a necessary consequence of industry.
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Donora incident
Pollution has been a problem since the earliest ancestors appeared. However, the industrial revolution, which began in the early 19th century, brought about a significant increase in pollution. One notable incident of pollution is the 1948 Donora smog, also known as the Donora death fog. This incident lasted several days and was caused by hydrogen fluoride and sulfur dioxide emissions from U.S. Steel's Donora Zinc Works and its American Steel & Wire plant. The pollution from these plants was trapped in Donora by an atmospheric temperature inversion, causing a thick smog to blanket the town.
The effects of the smog were devastating, killing 20 people and causing respiratory issues for around 6,000 of the 14,000 residents. The smog was so dense that it made the roads impossible to traverse, and first responders had to go door-to-door to provide oxygen to those affected. The first death occurred around 2:00 am on Saturday, October 30, and within 12 hours, 17 citizens of Donora had died. In the following month, an additional 50 residents died of respiratory causes. The total number of people affected by the smog was approximately 7,000, with varying levels of illness.
The Donora smog had a significant impact on the community, with mortality rates in the town remaining significantly higher than in nearby communities even a decade after the incident. A study conducted in 1961 found that the rate of death from cancer and cardiovascular disease in Donora from 1948 to 1957 was significantly elevated compared to other areas. The incident also sparked an interest in a new kind of public health research, with a focus on the effects of chronic exposure to pollution over long periods.
The Donora smog is often credited for helping to trigger the clean-air movement in the United States, leading to the creation of the Air Pollution Control Act of 1955 and the Clean Air Act of 1963. These pieces of legislation marked the first attempts to control air pollution and protect the public from hazardous airborne contaminants. The incident also led to the first large-scale epidemiological investigation of an environmental health disaster in the United States, changing the face of environmental protection in the country.
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London smog
Air pollution has been a problem in London for centuries, since at least the 13th century, when the burning of coal contributed to the city's smog. However, the worst air pollution event in the history of the United Kingdom occurred much later, in December 1952. This event is known as the Great Smog of London.
The Great Smog of London lasted from Friday, December 5 to Tuesday, December 9, 1952. It was caused by a combination of industrial pollution and high-pressure weather conditions. An anticyclone settled over London, trapping cold air below warm air in a weather phenomenon known as a temperature inversion. This prevented the dispersal of smoke from chimneys and industrial pollutants such as sulphur dioxide, which instead accumulated in the lower atmosphere. The unusually cold weather also led Londoners to burn more coal than usual to keep warm. The smoke and fog brought London to a near standstill, with visibility reduced to just a few metres. Public transport ceased, and the ambulance service was disrupted, forcing individuals to make their own way to hospitals. The smog even seeped indoors, causing the cancellation of concerts, film screenings, and outdoor sports events.
The Great Smog had devastating consequences for public health. Government medical reports in the weeks following the event estimated that up to 4,000 people had died as a direct result, with 100,000 more made ill by the effects on the human respiratory tract. More recent research suggests that the total number of fatalities was much higher, with estimates ranging from 10,000 to 12,000 deaths.
The Great Smog of London was a turning point in the history of environmentalism. It prompted Parliament to pass the Clean Air Act in 1956, which aimed to combat the city's air pollution. London's pollution became less visible as coal was gradually replaced by gas and power stations were moved outside the city. However, air pollution remains a severe and deadly problem in London today, mainly caused by road vehicles.
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Industrial waste
Pollution has been a problem since the appearance of our earliest ancestors. During the Middle Ages, diseases such as cholera and typhoid fever broke out across Europe due to unsanitary conditions caused by human and animal waste.
The Industrial Revolution, which began between 1820 and 1840, brought about new manufacturing processes, including the rise of mechanized factories, chemical manufacturing, and increased use of steam and water power. This led to a new form of pollution from industrial waste.
In 1897, a report to the Royal Commission on River Pollution detailed the gross industrial contamination of the Tawe River in Wales, polluted by "alkali works, copper works, sulfuric acid liquid, sulfate of iron from tin-plate works, and by slag, cinders, and small coal." During this time, industrial chemicals and wastes contaminated waters in the United States as well, with Chicago building one of the first sewage systems to treat wastewater.
Water and air pollution in industrialized cities continued to increase well into the 20th century. The Cuyahoga River in Cleveland, Ohio became so polluted that it caught fire on several occasions between 1936 and 1969, with the first fire occurring when a spark from a blowtorch ignited floating debris and oils. The 1969 fire occurred at a time of increasing environmental awareness and symbolized years of neglect, spurring grassroots activism and federal legislation to address water and air pollution.
Since then, clean air legislation has been revised and strengthened, with laws such as the Clean Air Act of 1990 significantly reducing the amount of pollution released into the environment. However, industrial activities continue to be a major source of pressure on the environment, releasing pollutants into the atmosphere and water ecosystems. Industrial waste can include hazardous materials such as heavy metals, chemicals, and sewage, which can have detrimental effects on human health and the environment. While releases of pollutants by European industries have generally decreased over the last decade, the costs of pollution remain high, with Europe's largest industrial plants causing substantial economic damage.
Less-developed countries that are becoming industrialized face challenges in disposing of their waste with minimal environmental impact due to limited resources and technology. Metals, chemicals, and sewage released into bodies of water can directly affect marine ecosystems and human health, with toxins killing marine life and causing illnesses in those who consume contaminated marine animals.
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Frequently asked questions
Water pollution has been a problem for centuries, with humans unknowingly contaminating drinking water with raw sewage, leading to diseases such as cholera and typhoid. Here are some notable instances of water pollution:
- 1897: The Tawe River in Wales was contaminated by industrial waste, including sulfuric acid, copper works, and alkali.
- 1989: The Exxon Valdez oil spill resulted in approximately 11 million gallons of crude oil being dumped into the sea off Alaska's Prince William Sound.
- 1947-1960s: Lake Karachay, named the "most polluted spot" on Earth, served as a disposal site for the Soviet Union.
- 1974: PCB dumping in the Hudson River resulted in a ban on fish consumption by the EPA.
Air pollution has been recognized as a threat to human health since the time of Hippocrates, around 400 BC. Here are some notable instances of air pollution:
- 1948: A deadly smog episode in Donora, PA, asphyxiated 20 people and made more than 7,000 seriously ill.
- 1952: The London smog resulted in the premature deaths of approximately 12,000 people, leading to the introduction of the Clean Air Act in 1956.
- 1969: The Cuyahoga River in Ohio caught fire due to chemical waste, becoming a symbol of industrial pollution.
Pollution has various sources, and it is challenging to pinpoint a single worst offender. However, here are some significant contributors to pollution:
- Industrial activities: The Industrial Revolution marked a turning point in environmental pollution, with factories releasing pollutants into rivers and the air.
- Population growth and urbanization: The expansion of "megacities" and rapid economic development have led to increased pollution from fuel sources, industrialization, and poor waste management.
- Specific industries: The meat and dairy industries, along with the textile industry, are considered major polluters due to their environmental impact and extensive use of chemicals.
It is challenging to determine the exact year pollution was at its worst as it depends on various factors and specific pollutants. However, certain events and periods in history stand out:
- Late 1970s: National news stories in the US highlighted long-term dioxin contamination and uncontrolled dumping, leading to the Superfund legislation of 1980.
- 1980s and 1990s: The Mapping Pollution with Satellites (MAPS) missions detected high levels of tropospheric carbon monoxide (CO) pollution.
- Early 21st Century: With advancements in detection and understanding of air pollution, the effects on human health became a top priority for political agendas worldwide.
While it is difficult to quantify the severity of pollution over time, it is safe to say that certain periods, such as the late 20th century, witnessed particularly notable instances of pollution and their consequences. However, through legislation, environmental awareness, and technological advancements, efforts have been made to mitigate pollution and improve the situation.
