The annual Sseneene harvest in Uganda is a time-honored tradition that provides not only a source of food but also an opportunity for many to earn some extra income. As the rainy season unfolds, a unique method of attracting these insects has emerged: using mercury vapor lamps. These bright lights are highly effective in luring grasshoppers, turning what was once a seasonal food source into a bustling market for grasshoppers. While this practice has brought about economic benefits, it also raises significant environmental and health concerns, particularly with the widespread use of mercury-containing lighting systems. The bright light that attracts these valuable insects may be casting a dark shadow on Uganda’s future.
Mercury vapor lamps are known for their intense, bright light that can draw large numbers of insects, including the elusive Seneene. These lamps are often set up in fields or open spaces, where they shine throughout the night, creating a beacon for grasshoppers. The insects are naturally drawn to the light, and once they arrive, they are caught in nets or containers. The grasshoppers are then sold to markets or directly to consumers, providing a much-needed income for those involved in the harvest. In addition to their ability to attract grasshoppers, mercury vapor lamps are relatively inexpensive and efficient, making them a popular choice for many.
Grasshopper harvesting has become a community activity, with groups of people working together to catch and sell the insects. The economic value of the harvest has led to the creation of small businesses, which sell fried grasshoppers at local markets or even export them to other countries. This has contributed to job creation, local economies, and the overall well-being of many families. In a country where agriculture and informal sectors dominate, such opportunities are essential.
The Economic and Cultural Impact of grasshopper Harvest
The use of mercury lamps has had a significant impact on Uganda’s economy, particularly for the rural population. With the country’s unemployment rate high, the Seneene harvest provides an important avenue for many to generate income. It’s a practice that is ingrained in the local culture, and for many, it is a generational tradition passed down over the years. The combination of cultural relevance and economic opportunity has led to the rapid proliferation of mercury lamps across Uganda.
The grasshoppers are a beloved delicacy—fried, grilled, or stewed offering a rich source of protein and vital nutrients. The demand for the grasshoppers is high, and many farmers and small-scale entrepreneurs rely on the harvest to supplement their incomes. In order to maximize the harvest, people have turned to mercury vapor bulbs, which are incredibly effective in attracting the grasshoppers.
The Dark Consequences of Mercury
The benefits of using mercury lamps come with significant risks. Mercury is a toxic substance that poses serious environmental and health threats. As mercury lamps are widely used in Uganda, the accumulation of mercury from waste has become a growing problem. Once these bulbs burn out or break, they are often disposed of improperly, contaminating the environment. The release of mercury into the soil and water can have devastating effects on local ecosystems, affecting both plant and animal life.
Mercury is particularly harmful to humans, as it can accumulate in the body over time. Prolonged exposure can lead to severe neurological and developmental issues, especially in children. Ingesting food or water contaminated by mercury can cause cognitive impairments, kidney damage, and other health problems. Despite the government’s efforts to deliver on its obligations under the Minamatqa Convention on Mercury (MCoM), the continued use of mercury vapor lamps in grasshopper harvest, and improper disposal of broken and or obsolete mercury-containing bulbs contributes to the contamination of both food and water sources, posing long-term health risks to communities.
National Efforts to Reduce Lighting Systems Containing Mercury Compounds
In 2015 government of Uganda launched a program for distributing LED bulbs as a measure to replace mercury-containing bulbs/lamps, focusing on Kampala and its surroundings with plans to expand the program to other parts of the country.
In addition to distributing LED lighting bulbs, the government also implemented several measures to address the environmental and health risks associated with mercury and other hazardous substances in electronic waste (e-waste). In June 2021, government through the National Environment Management Authority (NEMA) launched a National E-Waste Management Centre in Bugolobi, Kampala. The facility is managed by the National Enterprise Corporation (NEC), and it is designed to collect, sort, dismantle, and dispose of e-waste safely. Plans are underway to expand the centre into a refurbishment and recycling facility.
Furthermore,NEMA initiated a public awareness campaigns to educate citizens on the importance of proper e-waste disposal and the environmental and health risks associated with improper handling of electronic waste. These campaigns aim to encourage responsible disposal practices and reduce the environmental impact of e-waste.
Despite government efforts to promote the use of LED lighting, distribution initiatives were largely limited to Kampala, leaving many other regions of the country still dependent on hazardous lighting systems. This partial implementation undermines national efforts to transition to safer, more energy-efficient lighting technologies. In areas outside the capital, dangerous bulbs, particularly those containing harmful substances like mercury, continue to be used, posing significant health and environmental risks.
This situation presents a major obstacle to fulfilling the country’s commitments under the Minamata Convention on Mercury, which aims to reduce and, where possible, eliminate the use of products containing mercury. The continued availability of mercury-based lighting systems in retail outlets and supermarkets across the country indicates gaps in regulation and enforcement. Without broader and more inclusive nationwide efforts, the goal of eliminating mercury-containing lighting will remain out of reach, weakening the country’s environmental health agenda and international credibility.
