In .net Adding data to blocking collection queue from different threads is thread safe or not.

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C#

.NET

C#4.0

Hi I want to implement multiple thread Producer and single Consumer,
My purpose is insert data from different threads into my Queue.The data from queue is processed by single consumer.
My doubt is adding data to blocking collection queue from different threads with below implementation is thread safe or not.?
Does it insert any duplicate records while adding to queue from different threads?
Kindly share your ideas.

namespace SampleCollection
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void producer_Click(object sender, EventArgs e)
        {
            int i = 0;
            while (i <= 10)
            {
                i++;
                ProducerConsumer obj = new ProducerConsumer();
                ThreadPool.QueueUserWorkItem(obj.Producer, i);
            }
         
        }
    }
        public class ProducerConsumer
        {
            public static BlockingCollection<object> queue = new BlockingCollection<object>();
            public static Thread producerThread = null;
            static ProducerConsumer()
            {
                producerThread = new Thread(new ThreadStart(Consumer));
                producerThread.Start();
            }
            public void Producer(object item)
            {
               queue.Add(item);
            }
            public static void Consumer()
            {
                while (true)
                {
                    object item =queue.Take();                      
                    // Add my code to process the item here.
                }
            }
        }        
}