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Tap water quality in Oeiras, Distrito de Lisboa? Is it safe to drink?

Overview

Oeiras, located in the beautiful Distrito de Lisboa, Portugal, is known for its stunning coastlines and vibrant community. Here, residents enjoy access to water sourced primarily from local wells, rivers, and reservoirs. However, to ensure safe consumption, it is essential to understand the water's quality and take appropriate measures if necessary.

Water Quality Issues

Source: The main source of water in Oeiras includes a network of reservoirs and wells. Due to its proximity to both urban and agricultural areas, the water may occasionally carry impurities.

Testing: Regular testing is conducted by local authorities to monitor water quality. These tests are critical to ensuring that bacterial levels and chemical contamination are within acceptable limits.

Standards: The water quality in Oeiras is evaluated against both national and European Union standards, ensuring a high level of safety for all residents. Nonetheless, even when meeting these standards, there can be variations in taste and mineral content.

Water Hardness: One notable concern with Oeiras' water is its hardness level. Hard water, characterized by high mineral content such as calcium and magnesium, is common in this region.

Concerns: Hard water can lead to several issues, including scaling on plumbing fixtures, reduced soap effectiveness, and potentially adverse effects on hair and skin. These issues highlight the importance of addressing water quality in Oeiras.

Recommendations

Given these considerations, residents and businesses in Oeiras are encouraged to invest in water quality improvement solutions. There are two primary approaches to consider:

  1. Water Filters: Using high-quality water filters can significantly reduce contaminants, improving both the safety and taste of household water.
  2. Water Softeners: To address the issue of water hardness, installing a water softener can help mitigate mineral buildup, ensuring smoother skin and hair, and extending the life of appliances.

Taking these simple steps can ensure a continuous supply of healthy and pleasant-tasting water in every household in Oeiras.

Check water quality in another city or zip code

Get Involved. Take Action

Contact Your Local Elected Official & Water Supply Company

One of the best ways for cleaner water is to talk to elected officials who have a say in water quality. Ask questions and demand actionable plans for healthier water.

Filter Out Contaminants

Check out different water filters to protect your water against the detected contaminants.


Which water purifier to get for Oeiras, Distrito de Lisboa?

Types of filters

GAC & Carbon

Micro filter

Ultra filter

Nano filter

Reverse Osmosis filter

Particle size filtered

> 10 Microns

10 to 0.1 Microns

0.1 to 0.01 Microns

0.01 to 0.001 Microns

< 0.0001 Microns

Common Suspended Compounds

Sediments

Pollen

Giardia Cysts

Bacteria, Algae

Yeast Cells

Asbestos fibers

Blue Indigo Dye

Cryptosporidium

MicroPlastics

Some

PFAs -polyfluoroalkyl substances

Some

Arsenic, Lead, Cadmium, Mercury

Haloacetic acids (HAA5/HAA9)

Total trihalomethanes (TTHMs)

Viruses

Some

Colloidal Silica

Some

Common Dissolved solids

1,1-Dichloroethane

Tetrachloroethylene (perchloroethylene)

Trichloroethylene

Pesticides and Herbicides

Some

Some

Synthetic Dyes

Bromide

Some

Some

Some

Some

Bromochloromethane

Some

Some

Some

Some

Hardness

Some

Aqueous Salts

Some

Endocrine disruptors

Some

Nitrate & nitrite

Some

1,4-Dioxane

Some

Aluminum

Some

Barium

Some

Chromium (total)

Some

Fluoride

Some

Manganese

Some

Molybdenum

Some

Selenium

Some

Strontium

Some

Trichlorofluoromethane

Some

Uranium, combined (pCi/L)

Some


What do we do? How do we help?

We have developed the TDSBot, an inexpensive IOT device that monitors, in real time, the Incoming and Outgoing TDS levels, temperature, flow rate and cumulative volume of water filtered. Easy to install, it works with all water purifiers including, sediment, GAC, Carbon, Micro, Ultra, Nano and Reverse Osmosis water filters. Key benefits:

  • Know the incoming and filtered water quality in real time.
  • Know the volume of water filtered by day, week, month and total.
  • Know in advance when to change filter cartridges. Too often we tend to realize that they need changing after the water purifier has stopped working or worse, when the water smells bad.
  • Change filters only when needed. Sometimes filters perform longer than their standard life due to better incoming water or lower usage. Reduce waste and save money.
  • Quality data collected is aggregated to show real time water quality data to all the community.

TDSBot can be installed on water purifiers from Pentair, Culligan, 3M, Brita, BWT, iSpring, and most other brands. Supports sediment, GAC, Micro, Ultra, Nano and Reverse osmosis filters. It can remotely monitor filters attached to Coffee machines, Ice makers, soda fountains, water dispensers, ovens, laundry & dish washing, car wash found at Cafes, convenient stores, healthcare facilities, hotels, offices, restaurants, colleges, schools, hydroponic systems, and many more.

There are no TDSBots in Oeiras, Distrito de Lisboa that are sharing tap water quality. Be the first one to install one on your water purifier. We are giving $10 off. Apply coupon code - Oeiras while checking out.

Ensure safe and healthy drinking water. Start sharing tape water quality in Oeiras for the benefit of the community


Sustainability Impact Insights

TDSBot can generate a variety of sustainability data, including water usage metrics, identify areas of reducing water waste, leak detection and prevention, extend filter and equipment lifespan, predictive maintenance alerts to extend equipment life and reduce environmental impact.
Sustainability data can be easily showcased on your corporate website or publicly shared on your social media
BOTTLES

929 299

Plastic Bottles Saved

7 694 Kg

CO2 Emissions Saved

USD 204 445

Bottled H2O/Maintenance Savings

21 544

Car Miles Avoided

769

Equivalent Trees Planted

464 649 L

Total Water Filtered

last update 03/16/2025


* A definition specific to a few codes is that “Safe drinking water” means water that meets all primary and secondary drinking water standards. Drinking water standards are set based on potential health impacts and also take into account the cost to meet the drinking water standard. Also, the U.S. Environmental Protection Agency (EPA) defines drinking water as safe when humans can drink it with low risk of immediate or long-term harm to your health. Although there may be health risks associated with certain contaminants found in drinking water not all contaminants are necessarily harmful.
** Based on the data collected from the TDSBots installed in Los Angeles, California

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