
Barium and the Risk of Hypertension: A Concern for NYC's Water Drinkers
- Published:
- Updated: December 16, 2024
Summary
Barium levels in NYC’s tap water raise concerns about hypertension risks. Key points:
- Barium Basics: Industrial processes and natural deposits contribute to barium in water.
- Health Implications: Elevated barium levels have been linked to hypertension, posing risks to public health.
- Regulatory Challenges: While guidelines exist, loopholes and outdated standards may not adequately protect against health risks.
It’s a city that has much to offer in terms of cuisine, culture and buildings, but at the bottom of it is a health issue you should all be aware of: barium in tap water. Barium troughs have been associated with various illnesses, most of them hypertension (high blood pressure). That’s a very real problem for the 8 million of us who depend on the city’s water supply: how safe is our tap water?
The Importance of Clean Water
Life needs water, not just to survive but also to stay alive. From hydrating our cells to cleaning our system, pure water is an integral part of our lives. And we unfortunately don’t expect public water supplies to be safe. There is trust, but there’s also verification, particularly if the stakes are so big, as with public health.
In New York City, for instance, we have high water quality standards, and the water is treated before coming out of your faucet. But regulations don’t always insure us against every contaminant. New Yorkers aren’t the first ones to wonder if tap water is safe, but we should be.
What Is Barium and Why Is It in Our Water?
The element barium is an alkaline earth metal that we frequently encounter in nature but don’t often come in the form of a pure metal. You generally see it in solution with other elements, giving us stuff such as barium sulphate and barium carbonate. But why even in our water is there barium? And the solution usually comes back to industrial processes, or mineral deposits, or some form of drilling that may pollute groundwater.
Although barium in the public water supply is managed by federal and state laws, a dip can occur from time to time. They’re usually published, but the wait between a report’s publication and a correction is uncomfortable. New Yorkers should stay on the lookout for these reports and know what to expect.
The Proven and Potential Health Effects of Barium
Over-exposition to barium can cause all kinds of illness. They’ve been documented as having digestive problems, muscle weakness, and, more frighteningly, cardiac problems. This association between barium and hypertension is especially concerning, since hypertension precedes a wide range of catastrophic cardiovascular conditions, such as heart attacks and strokes.
Infants, the elderly and those with underlying medical problems are most at risk from barium. Even very low barium levels are problematic for these populations. In a city as diverse as New York with its population made up of elderly, young families, the threat is not just hypothetical, it’s personal.

How Does Barium Affect Blood Pressure?
How barium affects blood pressure is unclear, but the most commonly accepted mechanism is to narrow blood vessels. The barium ions could upset the equilibrium of other ions such as potassium which is responsible for controlling blood pressure. When you expose yourself to them in the short-term, there might be no noticeable effects, but if you expose yourself to it enough times, you will have elevated blood pressure.
A few case studies also show that long-term barium exposure causes high blood pressure in a direct way. If we consider that hypertension is already a prevalent condition with millions of Americans in the crosshairs, then the added burden of barium exposure might make a worse public health situation worse.
The EPA Guidelines and the Loopholes
The maximum allowed content of barium in a drinkable water supply is 2 milligrams per liter, according to the Environmental Protection Agency (EPA). But there are critiques to this number. For one thing, the ‘safe level’ is routinely chosen by way of a study that’s long past its useful date or by an animal model that can’t quite match the way people are regulated.
Moreover, these standards contain loopholes. They typically provide for temporary increases in contaminants so long as the annual average stays within permissible ranges. This measurement technique can be deceptive because even very brief exposures to a high dose of barium might still be unhealthy, particularly in children and the elderly.
Risk Assessment for NYC Residents
There may be different amounts of barium in the water supply in different boroughs, or even different neighbourhoods in New York City. You have to read your local water quality report to know what’s up. Old infrastructure, for example, could be less resilient to contamination, and thus in higher-risk regions.
Anecdotal accounts and more small-scale studies indicate high barium levels in certain districts of the city. These towns have been beset by health complaints corresponding with higher barium intake, such as undiagnosed hypertension. A direct correlation needs to be confirmed, but the evidence alone is reason for alarm.
Comparing NYC with Other Major Cities
New York City’s water quality is normally a decent place, compared with the rest of the United States, but is it sufficient? On barium, New York’s average is in the federal target range, but places such as San Francisco and Seattle have consistently lower values.
Globally, for example, Switzerland and Singapore have water supplies so low in barium that more control is possible. Because NYC is the world leader, being the dummy doesn’t have to be the standard.
Practical Tips to Minimize Your Risk
To mitigate the risk of barium exposure, consider the following actionable steps:
- Filter Your Tap Water: Activated carbon filters can remove many contaminants but check if they’re certified to reduce barium.
- Choose Bottled Water Wisely: Not all bottled waters are created equal. Check for quality reports and opt for brands with low barium levels.
- Regular Blood Pressure Checks: Given the risk of hypertension, frequent monitoring can provide early detection and better management options.
Besides these precautions, a healthy lifestyle incorporating a balanced diet and regular exercise can help offset some of the risks associated with barium exposure. Nutrients like potassium, found in bananas and oranges, can particularly help in maintaining a healthy blood pressure level.
Your Role in Demanding Change
If you live in New York City, you can and should have a voice. Join public meetings, sign petitions, and engage with your local officials to insist on better water. Power in numbers, and collective measures such as alliances with neighbours or a local association can really spread the word.
You can even call your representative and senators at home. They are the ones who can make the difference but they have to listen to their voters in order to understand the magnitude of the problem. A community that knows better is a community that’s equipped to insist on changes.
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